# Klaviyo vs OptinMonster: features, pricing and popup workflows
Compare Klaviyo vs OptinMonster: popup forms, targeting, games, integrations, pricing and task-based ratings. See the differences that affect your campaign.
- Page: https://popuppapa.com/klaviyo-vs-optinmonster/
- Published: 2026-10-27; updated: 2026-10-27
- Klaviyo review: https://popuppapa.com/reviews/klaviyo/index.md
- OptinMonster review: https://popuppapa.com/reviews/optinmonster/index.md
## What do you need your website to do next?
Klaviyo and OptinMonster overlap at the signup form, but are not equivalent marketing platforms. Klaviyo stores subscriber profiles and sends email and SMS. OptinMonster builds onsite campaigns that pass captured leads to a connected service, which may itself be Klaviyo.
For a store already using Klaviyo, the comparison is often whether an additional capture layer adds something useful. Klaviyo’s forms use list and segment context, and its experiments can compare multiple variants. OptinMonster brings a separate campaign editor, tiered display rules and site-level publishing roles.
Costs need the same boundary. A Klaviyo subscription can pay for profile and sending capacity even when forms are included. An OptinMonster subscription adds another bill without removing the sending platform. The feature tables make that distinction visible instead of comparing the two headline fees as substitutes.
## How the comparison works
15 rounds compare both platforms against the same 196 capability criteria, with 100 points distributed across the sections. Each round explains the practical differences and adds to the running score. The table beneath each round shows how the points are awarded, with the source behind each verdict.
## Round 1: Formats & content
Weight: 9 points.
Klaviyo focuses its onsite editor on signup forms, including popup, flyout and embedded layouts. Mobile settings adapt the signup experience to smaller screens. OptinMonster includes floating bars and animated lightboxes, with countdowns and dynamic Smart Tags on Pro. Its operational-notice examples use messages with buttons, a useful format when an update has a destination.
| Criterion | Klaviyo | OptinMonster | Evidence |
| --- | --- | --- | --- |
| Message | Not confirmed | Not confirmed | Klaviyo: [Message](https://www.klaviyo.com/uk/features/web-forms), 2026-09-30 · OptinMonster: [Message](https://optinmonster.com/changing-business-hours-notification/), 2026-09-30 |
| Flyby / slide-in | (+0.64) | Not confirmed | Klaviyo: [Flyby / slide-in](https://help.klaviyo.com/hc/en-us/articles/360026474752), 2026-10-17 |
| Promo bars | (+0.32) | (+0.32) | Klaviyo: [Promo bars](https://help.klaviyo.com/hc/en-us/articles/360026474752), 2026-10-17 · OptinMonster: [Promo bars](https://optinmonster.com/pricing/), 2026-09-30 |
| Teasers | (+0.64) | Not confirmed | Klaviyo: [Teasers](https://help.klaviyo.com/hc/en-us/articles/4411540984859), 2026-10-17 |
| Content carousel | Not confirmed | Not confirmed | — |
| Eye-catching | Not confirmed | (+1.29) · Eye-catching: (+0.64) · Entrance animation: (+0.64) | OptinMonster: [Eye-catching](https://optinmonster.com/docs/how-to-add-monstereffects-animations-to-your-lightbox-popup/), 2026-09-30; [Eye-catching](https://optinmonster.com/docs/how-to-add-monstereffects-animations-to-your-lightbox-popup/), 2026-09-30; [Eye-catching](https://optinmonster.com/docs/how-to-add-monstereffects-animations-to-your-lightbox-popup/), 2026-09-30; [Eye-catching](https://optinmonster.com/docs/how-to-add-monstereffects-animations-to-your-lightbox-popup/), 2026-09-30 |
| Countdown | (+0.32) | (+0.32) | Klaviyo: [Countdown](https://help.klaviyo.com/hc/en-us/articles/360026474752), 2026-09-29 · OptinMonster: [Countdown](https://optinmonster.com/pricing/), 2026-09-29 |
| Button link | (+0.32) | (+0.32) | Klaviyo: [Button link](https://help.klaviyo.com/hc/en-us/articles/4413550187035), 2026-10-26 · OptinMonster: [Button link](https://optinmonster.com/docs/how-to-add-a-link-to-the-success-message/), 2026-10-26 |
| Copy coupon | Not confirmed | Not confirmed | — |
| Dynamic text | Not confirmed | (+0.64) | OptinMonster: [Dynamic text](https://optinmonster.com/pricing/), 2026-09-29 |
| Mobile editor | Desktop and mobile views, with flyout position and device-specific blocks. (+0.64) | Not confirmed | Klaviyo: [Mobile editor](https://help.klaviyo.com/hc/en-us/articles/4406161800987), 2026-10-17 |
Round score: Klaviyo +2.89 (total 2.89), OptinMonster +2.89 (total 2.89).
## Round 2: Forms
Weight: 12.6 points.
Klaviyo forms write into the profile used by later messages. OptinMonster’s connector sends data to that destination, making provider setup and field mapping another part of the workflow. Klaviyo collects email, phone, text, radio, dropdown and checkbox answers across multiple steps. Consent and hidden properties attach to the profile. Phone-format checks, CAPTCHA and double opt-in help protect the list; mobile tap-to-text provides another SMS signup route.
OptinMonster connects email capture to an external email provider. Plus adds two-step Yes/No campaigns, letting a visitor express interest before seeing the signup form. The second screen changes the route into the form; it is separate from custom-field mapping, input validation and answer-dependent branching.
| Criterion | Klaviyo | OptinMonster | Evidence |
| --- | --- | --- | --- |
| Email capture | Subscribers go straight to Klaviyo's own contact lists. (+0.16) | (+0.16) | Klaviyo: [Email capture](https://help.klaviyo.com/hc/en-us/articles/115005076767), 2026-09-29 · OptinMonster: [Email capture](https://optinmonster.com/docs/how-to-connect-to-an-email-service-provider/), 2026-10-05 |
| SMS capture | (+0.32) | Not confirmed | Klaviyo: [SMS capture](https://help.klaviyo.com/hc/en-us/articles/9351341171995), 2026-10-08 |
| Phone field | Phone numbers are checked for format. (+0.32) | Not confirmed | Klaviyo: [Phone field](https://help.klaviyo.com/hc/en-us/articles/4413550187035), 2026-10-17 |
| Single choice | Radio buttons or a dropdown. (+0.32) | Not confirmed | Klaviyo: [Single choice](https://help.klaviyo.com/hc/en-us/articles/4413550187035), 2026-10-17 |
| Multiple choice | (+0.32) | Not confirmed | Klaviyo: [Multiple choice](https://help.klaviyo.com/hc/en-us/articles/4413550187035), 2026-10-17 |
| Free text | Text inputs for names or open comments. (+0.32) | Not confirmed | Klaviyo: [Free text](https://help.klaviyo.com/hc/en-us/articles/4413550187035), 2026-10-17 |
| Consent checkbox | (+0.65) · Consent checkbox: (+0.32) · Email marketing consent: A marketing consent block can be required and also asks for email open and click tracking consent. (+0.32) | Not confirmed | Klaviyo: [Consent checkbox](https://help.klaviyo.com/hc/en-us/articles/4413550187035), 2026-10-17; [Consent checkbox: Email marketing consent](https://help.klaviyo.com/hc/en-us/articles/4413550187035), 2026-10-17; [Consent checkbox](https://help.klaviyo.com/hc/en-us/articles/4413550187035), 2026-10-17; [Consent checkbox](https://help.klaviyo.com/hc/en-us/articles/4413550187035), 2026-10-17 |
| Hidden fields | Hidden properties on the submit button are saved to the profile. (+0.32) | Not confirmed | Klaviyo: [Hidden fields](https://help.klaviyo.com/hc/en-us/articles/4413550187035), 2026-10-17 |
| Multi-step | (+0.32) · Multi-step: (+0.16) · Popup steps: A form can have several steps, for example email on one and phone on another. (+0.16) | (+0.32) · Multi-step: (+0.16) · Popup steps: (+0.16) | Klaviyo: [Multi-step](https://help.klaviyo.com/hc/en-us/articles/360026474752), 2026-09-29; [Multi-step: Popup steps](https://help.klaviyo.com/hc/en-us/articles/360026474752), 2026-10-17; [Multi-step](https://help.klaviyo.com/hc/en-us/articles/360026474752), 2026-09-29 · OptinMonster: [Multi-step](https://optinmonster.com/pricing/), 2026-09-29; [Multi-step](https://optinmonster.com/pricing/), 2026-09-29; [Multi-step](https://optinmonster.com/pricing/), 2026-09-29 |
| Logic | Not confirmed | Not confirmed | — |
| Validation | (+1.29) · Validation: (+0.32) · Field validation: (+0.32) · Phone format: The phone field checks that the number is stored in an acceptable format. (+0.32) · Required fields: Any input can be required, with editable required and invalid messages. (+0.32) | Not confirmed | Klaviyo: [Validation](https://help.klaviyo.com/hc/en-us/articles/360026474752), 2026-10-17; [Validation: Field validation](https://help.klaviyo.com/hc/en-us/articles/360026474752), 2026-10-17; [Validation](https://help.klaviyo.com/hc/en-us/articles/360026474752), 2026-10-17; [Validation: Phone format](https://help.klaviyo.com/hc/en-us/articles/4413550187035), 2026-10-17; [Validation: Required fields](https://help.klaviyo.com/hc/en-us/articles/360026474752), 2026-10-17; [Validation](https://help.klaviyo.com/hc/en-us/articles/360026474752), 2026-10-17; [Validation](https://help.klaviyo.com/hc/en-us/articles/360026474752), 2026-10-17; [Validation](https://help.klaviyo.com/hc/en-us/articles/360026474752), 2026-10-17; [Validation](https://help.klaviyo.com/hc/en-us/articles/360026474752), 2026-10-17; [Validation: Phone verification](https://help.klaviyo.com/hc/en-us/articles/9351341171995), 2026-10-17 |
| CAPTCHA | (+0.32) | Not confirmed | Klaviyo: [CAPTCHA](https://help.klaviyo.com/hc/en-us/articles/360026474752), 2026-09-29 |
| Email double opt-in | (+0.32) | Not confirmed | Klaviyo: [Email double opt-in](https://help.klaviyo.com/hc/en-us/articles/9890182538011), 2026-09-29 |
| Follow-up | (+1.94) · Follow-up: (+0.32) · After signup: (+0.32) · Email automation: (+0.32) · Email sequences: Flows chain messages with delays between them. (+0.32) · Delays and branches: Flows add time delays and can split paths, for example by product. (+0.32) · Lifecycle triggers: A list-triggered flow starts when someone joins a list, including via a sign-up form. (+0.32) | Not confirmed | Klaviyo: [Follow-up](https://help.klaviyo.com/hc/en-us/articles/115002775172), 2026-09-29; [Follow-up](https://help.klaviyo.com/hc/en-us/articles/115002775172), 2026-09-29; [Follow-up](https://help.klaviyo.com/hc/en-us/articles/115002775172), 2026-09-29; [Follow-up](https://help.klaviyo.com/hc/en-us/articles/115002775172), 2026-09-29; [Follow-up: Email automation](https://help.klaviyo.com/hc/en-us/articles/115002775172), 2026-10-17; [Follow-up: Email sequences](https://help.klaviyo.com/hc/en-us/articles/115003885212), 2026-10-17; [Follow-up: Delays and branches](https://help.klaviyo.com/hc/en-us/articles/115002779431), 2026-10-17; [Follow-up: Lifecycle triggers](https://help.klaviyo.com/hc/en-us/articles/115002775172), 2026-10-17 |
Round score: Klaviyo +6.95 (total 9.84), OptinMonster +0.48 (total 3.38).
## Round 3: Surveys
Weight: 4.5 points.
Klaviyo’s signup fields can collect preferences and customer information. Dedicated rating and quiz formats are assessed separately below. OptinMonster’s two-step Yes/No campaigns start on Plus. A preliminary choice can lead into a signup, but that structure is different from a scored survey or a product quiz with answer-dependent results.
| Criterion | Klaviyo | OptinMonster | Evidence |
| --- | --- | --- | --- |
| Numeric rating | Not confirmed | Not confirmed | — |
| NPS | Not confirmed | Not confirmed | — |
| Star rating | Not confirmed | Not confirmed | — |
| Emoji rating | Not confirmed | Not confirmed | — |
| Binary rating | Not confirmed | Not confirmed | — |
| Quizzes | Not confirmed | Not confirmed | — |
Round score: Klaviyo +0 (total 9.84), OptinMonster +0 (total 3.38).
## Round 4: Gamification
Weight: 4.5 points.
Klaviyo offers a spin-to-win block with two to six slices. Each slice has a probability, success step and coupon. The signup can sit before or alongside the spin. This establishes a configurable wheel, not a library of scratch cards, calendars or outcome quizzes. OptinMonster places gamified wheels on Growth. That establishes a spin-to-win format at a higher tier than the selected Pro plan. The existence of the wheel does not establish a scratch card, seasonal calendar or the same reward-probability controls as another product.
| Criterion | Klaviyo | OptinMonster | Evidence |
| --- | --- | --- | --- |
| Spin the wheel | 2 to 6 slices, each with its own success step and coupon. (+0.4) · Spin the wheel: 2 to 6 slices, each with its own success step and coupon. (+0.13) · Prize weights: Each slice gets its own probability, at least 1%, adding up to 100%. (+0.26) | (+0.13) | Klaviyo: [Spin the wheel](https://help.klaviyo.com/hc/en-us/articles/34614633330075), 2026-10-17; [Spin the wheel: Prize weights](https://help.klaviyo.com/hc/en-us/articles/34614633330075), 2026-10-17; [Spin the wheel](https://help.klaviyo.com/hc/en-us/articles/34614633330075), 2026-10-17 · OptinMonster: [Spin the wheel](https://optinmonster.com/pricing/), 2026-09-29; [Spin the wheel](https://optinmonster.com/pricing/), 2026-09-29; [Spin the wheel](https://optinmonster.com/pricing/), 2026-09-29 |
| Slot machine | Not confirmed | Not confirmed | — |
| Plinko | Not confirmed | Not confirmed | — |
| Lottery ball | Not confirmed | Not confirmed | — |
| Claw machine | Not confirmed | Not confirmed | — |
| Scratch card | Not confirmed | Not confirmed | — |
| Pick a gift | Not confirmed | Not confirmed | — |
| Pick a card | Not confirmed | Not confirmed | — |
| Break the egg | Not confirmed | Not confirmed | — |
| Shake the tree | Not confirmed | Not confirmed | — |
| Memory cards | Not confirmed | Not confirmed | — |
| Treasure hunt | Not confirmed | Not confirmed | — |
| Learn to earn | Not confirmed | Not confirmed | — |
| Seasonal calendar | Not confirmed | Not confirmed | — |
| Daily offers | Not confirmed | Not confirmed | — |
Round score: Klaviyo +0.4 (total 10.24), OptinMonster +0.13 (total 3.51).
## Round 5: Targeting
Weight: 10.8 points.
Klaviyo’s list and segment context is useful for recognized subscribers. OptinMonster supplies a separate set of campaign display rules with tier restrictions. Klaviyo combines URL, UTM, device and location rules with lists and customer segments. Delay, scroll, exit and click triggers control the opening moment. Frequency settings limit repeat appearances, and form priorities decide which queued campaign appears first.
OptinMonster distributes targeting controls across paid tiers. Scheduling and advanced campaign controls are part of Pro, while geolocation requires Growth. This makes the combination of conditions important: a regional promotion with a fixed launch period needs the tier covering both the location and schedule.
| Criterion | Klaviyo | OptinMonster | Evidence |
| --- | --- | --- | --- |
| Page targeting | URL rules with wildcards and UTM filters. (+0.45) | Not confirmed | Klaviyo: [Page targeting](https://help.klaviyo.com/hc/en-us/articles/4413544555547), 2026-10-17 |
| Geo targeting | Countries or other locations, from the visitor's IP address. (+0.23) | (+0.23) | Klaviyo: [Geo targeting](https://help.klaviyo.com/hc/en-us/articles/4413544555547), 2026-10-17 · OptinMonster: [Geo targeting](https://optinmonster.com/pricing/), 2026-09-30 |
| Device targeting | (+0.45) | Not confirmed | Klaviyo: [Device targeting](https://help.klaviyo.com/hc/en-us/articles/4413544555547), 2026-10-17 |
| Audience targeting | (+3.15) · Audience targeting: (+0.45) · Referrer targeting: UTM source, medium, campaign, term and ID. (+0.45) · Cart targeting: Total cart value or specific products. (+0.45) · Profile targeting: (+0.45) · Customer tags: Segments built on the Shopify Tags property can decide who sees a form. (+0.45) · Order history: (+0.45) · List segments: Include or exclude lists and segments for cookied visitors. (+0.45) | Not confirmed | Klaviyo: [Audience targeting](https://help.klaviyo.com/hc/en-us/articles/4413544555547), 2026-10-17; [Audience targeting](https://help.klaviyo.com/hc/en-us/articles/4413544555547), 2026-10-17; [Audience targeting: Referrer targeting](https://help.klaviyo.com/hc/en-us/articles/4413544555547), 2026-10-17; [Audience targeting: Cart targeting](https://help.klaviyo.com/hc/en-us/articles/4413544555547), 2026-10-17; [Audience targeting: Profile targeting](https://help.klaviyo.com/hc/en-us/articles/4413544555547), 2026-10-17; [Audience targeting: Customer tags](https://help.klaviyo.com/hc/en-us/articles/115005080907), 2026-10-17; [Audience targeting](https://help.klaviyo.com/hc/en-us/articles/4413544555547), 2026-10-17; [Audience targeting: Order history](https://help.klaviyo.com/hc/en-us/articles/4413544555547), 2026-10-17; [Audience targeting: List segments](https://help.klaviyo.com/hc/en-us/articles/4413544555547), 2026-10-17 |
| Behavior triggers | (+2.25) · Behavior triggers: (+0.45) · Time delay: (+0.45) · Exit intent: (+0.45) · Scroll trigger: (+0.45) · Custom event trigger: (+0.45) | Not confirmed | Klaviyo: [Behavior triggers](https://help.klaviyo.com/hc/en-us/articles/4413544555547), 2026-10-17; [Behavior triggers: Time delay](https://help.klaviyo.com/hc/en-us/articles/4413544555547), 2026-10-17; [Behavior triggers: Exit intent](https://help.klaviyo.com/hc/en-us/articles/4413544555547), 2026-10-17; [Behavior triggers: Scroll trigger](https://help.klaviyo.com/hc/en-us/articles/4413544555547), 2026-10-17; [Behavior triggers](https://help.klaviyo.com/hc/en-us/articles/4413544555547), 2026-10-17; [Behavior triggers](https://help.klaviyo.com/hc/en-us/articles/4413544555547), 2026-10-17; [Behavior triggers: Custom event trigger](https://help.klaviyo.com/hc/en-us/articles/4418052317339), 2026-10-17; [Behavior triggers](https://help.klaviyo.com/hc/en-us/articles/4413544555547), 2026-10-17 |
| Click trigger | (+0.45) | Not confirmed | Klaviyo: [Click trigger](https://help.klaviyo.com/hc/en-us/articles/4418052317339), 2026-10-17 |
| Scheduling | (+0.23) | (+0.23) | Klaviyo: [Scheduling](https://help.klaviyo.com/hc/en-us/articles/360002049952), 2026-10-17 · OptinMonster: [Scheduling](https://optinmonster.com/pricing/), 2026-09-30 |
| Frequency cap | Days to wait before a closed form returns, or show it on every visit. (+0.45) | Not confirmed | Klaviyo: [Frequency cap](https://help.klaviyo.com/hc/en-us/articles/4413544555547), 2026-10-17 |
| Campaign control | Low, Medium, High or Highest priority decides which queued form shows first. (+0.45) | Not confirmed | Klaviyo: [Campaign control](https://help.klaviyo.com/hc/en-us/articles/4413544555547), 2026-10-17 |
Round score: Klaviyo +8.1 (total 18.34), OptinMonster +0.45 (total 3.96).
## Round 6: Experiments
Weight: 6.3 points.
Klaviyo supports multiple form variants and automatic winner selection. OptinMonster’s A/B entitlement starts on Plus but should not be assumed to include equivalent winner or traffic controls. Klaviyo tests up to seven form variations, divides traffic evenly or by configured weights, and supports automatic winner selection. Results include revenue per variation. A test between form designs does not itself establish a no-form control group. OptinMonster includes A/B testing from Plus. A team can compare popup designs without buying Growth solely for experiments. Automatic winner selection, adjustable traffic allocation and a no-popup control are separate criteria; the A/B-testing label alone does not establish them.
| Criterion | Klaviyo | OptinMonster | Evidence |
| --- | --- | --- | --- |
| A/B testing | Up to 7 form variations. (+4.2) · A/B testing: Up to 7 form variations. (+0.35) · Popup tests: Sign-up forms can be tested with up to 7 variations. (+0.35) · Traffic split: Manual weights set each variation's share of traffic, adding up to 100%. (+0.7) · Automatic winner: The test can end on a statistically significant winner or a set date, and the winner goes live. (+0.7) · Email or SMS campaign tests: (+0.7) · Email tests: (+0.7) · SMS tests: (+0.7) | (+0.7) · A/B testing: (+0.35) · Popup tests: (+0.35) | Klaviyo: [A/B testing](https://help.klaviyo.com/hc/en-us/articles/360045462071), 2026-10-17; [A/B testing: Popup tests](https://help.klaviyo.com/hc/en-us/articles/360045462071), 2026-10-17; [A/B testing](https://help.klaviyo.com/hc/en-us/articles/360045462071), 2026-10-17; [A/B testing: Traffic split](https://help.klaviyo.com/hc/en-us/articles/360045462071), 2026-10-17; [A/B testing](https://help.klaviyo.com/hc/en-us/articles/360045462071), 2026-10-17; [A/B testing: Automatic winner](https://help.klaviyo.com/hc/en-us/articles/360045462071), 2026-10-17; [A/B testing: Email or SMS campaign tests](https://help.klaviyo.com/hc/en-us/articles/115005228148), 2026-10-17; [A/B testing: Email tests](https://help.klaviyo.com/hc/en-us/articles/115005228148), 2026-10-17; [A/B testing: SMS tests](https://help.klaviyo.com/hc/en-us/articles/115005228148), 2026-10-17 · OptinMonster: [A/B testing](https://optinmonster.com/pricing/), 2026-09-29; [A/B testing](https://optinmonster.com/pricing/), 2026-09-29; [A/B testing](https://optinmonster.com/pricing/), 2026-09-29; [A/B testing](https://optinmonster.com/pricing/), 2026-09-29; [A/B testing](https://optinmonster.com/pricing/), 2026-09-29; [A/B testing](https://optinmonster.com/pricing/), 2026-09-29; [A/B testing](https://optinmonster.com/pricing/), 2026-09-29; [A/B testing](https://optinmonster.com/pricing/), 2026-09-29; [A/B testing](https://optinmonster.com/pricing/), 2026-09-29 |
Round score: Klaviyo +4.2 (total 22.54), OptinMonster +0.7 (total 4.66).
## Round 7: Email & SMS
Weight: 4.5 points.
Klaviyo is the sending platform in this pair. OptinMonster complements an email provider rather than replacing it. A Klaviyo signup can enter a welcome flow from a list. Flows also respond to segments, events and dates, with delays and conditional paths for later messages. Broadcasts, segmentation, email and SMS belong to the same platform; profiles and sending allowances determine the bill.
OptinMonster passes captured leads to a connected email platform. That platform owns broadcasts, subscriber segmentation and welcome sequences. The popup subscription and the sending subscription therefore remain separate parts of the budget, even when the integration creates a smooth signup journey.
| Criterion | Klaviyo | OptinMonster | Evidence |
| --- | --- | --- | --- |
| Email marketing | Campaigns, segments and flows; sending and profile limits depend on the plan. (+1.5) | Not confirmed | Klaviyo: [Email marketing](https://help.klaviyo.com/hc/en-us/articles/115002775172), 2026-09-29 |
| SMS marketing | (+1.5) | Not confirmed | Klaviyo: [SMS marketing](https://help.klaviyo.com/hc/en-us/articles/360035285472), 2026-09-29 |
| Web push | Not confirmed | Not confirmed | — |
Round score: Klaviyo +3 (total 25.54), OptinMonster +0 (total 4.66).
## Round 8: Team & sites
Weight: 4.5 points.
Klaviyo provides predefined and custom roles, with separate responsibilities for content, analysis and account management. Owners and Admins can edit billing. An activity log records changes, and Portfolio groups accounts; that grouping is not a promise of one subscription for every website. OptinMonster Pro adds Viewer, Author and Manager subaccounts assigned to sites and folders. Authors cannot publish, and access to leads or saved assets can be granted separately. These controls provide a concrete division between drafting a campaign and making it live for visitors.
| Criterion | Klaviyo | OptinMonster | Evidence |
| --- | --- | --- | --- |
| Workspaces | Portfolio groups several accounts for management. (+1.13) · Workspaces: Portfolio groups several accounts for management. (+0.56) · Client portfolio: (+0.56) | Not confirmed | Klaviyo: [Workspaces](https://www.klaviyo.com/features/portfolio), 2026-09-29; [Workspaces](https://www.klaviyo.com/features/portfolio), 2026-09-29; [Workspaces](https://www.klaviyo.com/features/portfolio), 2026-09-29; [Workspaces](https://www.klaviyo.com/features/portfolio), 2026-09-29 |
| Team | Individual user logins instead of a shared login. (+0.84) · Team: Individual user logins instead of a shared login. (+0.28) · Activity history: The activity logger lists each edit with time, user email and category. (+0.56) | (+0.28) | Klaviyo: [Team](https://help.klaviyo.com/hc/en-us/articles/115005231648), 2026-10-17; [Team: Activity history](https://help.klaviyo.com/hc/en-us/articles/44579125790747), 2026-10-17 · OptinMonster: [Team](https://optinmonster.com/docs/how-to-assign-the-proper-sub-account-user-role/), 2026-09-29; [Team](https://optinmonster.com/docs/how-to-assign-the-proper-sub-account-user-role/), 2026-09-29 |
| Roles | (+0.84) · Roles: (+0.28) · Billing access controls: Only Owners and Admins can edit billing. (+0.56) | (+0.28) | Klaviyo: [Roles](https://help.klaviyo.com/hc/en-us/articles/360053547071), 2026-10-17; [Roles: Billing access controls](https://help.klaviyo.com/hc/en-us/articles/115005231648), 2026-10-17 · OptinMonster: [Roles](https://optinmonster.com/docs/how-to-assign-the-proper-sub-account-user-role/), 2026-09-29; [Roles](https://optinmonster.com/docs/how-to-assign-the-proper-sub-account-user-role/), 2026-09-29 |
Round score: Klaviyo +2.81 (total 28.35), OptinMonster +0.56 (total 5.22).
## Round 9: Developer
Weight: 4.5 points.
Klaviyo’s REST API can create, update and publish forms, with reporting endpoints for performance. Browser events connect forms to site code. Its MCP server exposes campaigns, flows, profiles and reporting with scope restrictions; flow webhooks send custom payloads to an endpoint. OptinMonster Pro includes webhooks for lead delivery. A webhook connects captured data to another workflow; it should not be treated as an interface for an external agent to build or activate campaigns.
| Criterion | Klaviyo | OptinMonster | Evidence |
| --- | --- | --- | --- |
| HTTP API | Forms, campaigns, profiles, flows and reporting, with per-key scopes. (+1.88) · HTTP API: Forms, campaigns, profiles, flows and reporting, with per-key scopes. (+0.38) · Create designs: The Forms API creates and updates forms with full step, block and trigger definitions. (+0.38) · Operate campaigns: Forms can be published and unpublished through the API. (+0.38) · Read performance: The Reporting API returns form values and series. (+0.38) · Scoped credentials: Private API keys can be limited with scopes. (+0.38) | Not confirmed | Klaviyo: [HTTP API](https://developers.klaviyo.com/en/reference/forms_api_overview), 2026-10-17; [HTTP API: Create designs](https://developers.klaviyo.com/en/reference/forms_api_overview), 2026-10-17; [HTTP API: Operate campaigns](https://developers.klaviyo.com/en/reference/forms_api_overview), 2026-10-17; [HTTP API: Read performance](https://developers.klaviyo.com/en/reference/forms_api_overview), 2026-10-17; [HTTP API: Scoped credentials](https://developers.klaviyo.com/en/reference/api_overview), 2026-10-17 |
| Browser API | (+0.38) | Not confirmed | Klaviyo: [Browser API](https://developers.klaviyo.com/en/docs/introduction_to_the_klaviyo_object), 2026-10-17 |
| Webhooks | Not confirmed | (+0.38) | Klaviyo: [Webhooks](https://help.klaviyo.com/hc/en-us/articles/4534329515931), 2026-10-17 · OptinMonster: [Webhooks](https://optinmonster.com/pricing/), 2026-09-29 |
| MCP server | (+1.5) · MCP server: (+0.38) · Create designs: The MCP server has a tool to create forms. (+0.38) · Read performance: (+0.38) · Scoped credentials: Setting read-only=true disables every tool that writes to the account. (+0.38) | Not confirmed | Klaviyo: [MCP server](https://developers.klaviyo.com/en/docs/connect_to_the_klaviyo_mcp_server), 2026-10-17; [MCP server: Create designs](https://developers.klaviyo.com/en/docs/klaviyo_mcp_server_available_tools), 2026-10-17; [MCP server](https://developers.klaviyo.com/en/docs/connect_to_the_klaviyo_mcp_server), 2026-10-17; [MCP server](https://developers.klaviyo.com/en/docs/connect_to_the_klaviyo_mcp_server), 2026-10-17; [MCP server: Scoped credentials](https://developers.klaviyo.com/en/docs/connect_to_the_klaviyo_mcp_server), 2026-10-17 |
Round score: Klaviyo +3.75 (total 32.1), OptinMonster +0.38 (total 5.6).
## Round 10: Support
Weight: 1.8 points.
Klaviyo’s paid plans include email and live chat support, with availability depending on the plan and day. Free accounts receive email support for the first 60 days, then rely on self-service and AI-assisted help. OptinMonster advertises human support. The channel, availability and assistance included with a selected subscription should be distinguished from managed campaign work. A support promise is not a guarantee of a particular response time or round-the-clock live chat.
| Criterion | Klaviyo | OptinMonster | Evidence |
| --- | --- | --- | --- |
| Chat support | Live chat on paid plans; Free gets 60 days of email support. (+1.8) | Not confirmed | Klaviyo: [Chat support](https://help.klaviyo.com/hc/en-us/articles/115001002272), 2026-10-17 |
Round score: Klaviyo +1.8 (total 33.9), OptinMonster +0 (total 5.6).
## Round 11: Editor & workflow
Weight: 5.4 points.
Klaviyo includes the form editor on Free. Draft, Live and Editing statuses separate work in progress from the form visitors see. OptinMonster requires a paid subscription to access the editor in the reviewed signup flow. Choose the feature tier before purchasing: Plus, Pro and Growth unlock different campaign controls rather than simply increasing traffic.
| Criterion | Klaviyo | OptinMonster | Evidence |
| --- | --- | --- | --- |
| Free editor | (+0.77) | Not confirmed | Klaviyo: [Free editor](https://www.klaviyo.com/pricing), 2026-10-17 |
| Campaign drafts | Draft, Live and Editing statuses; a draft is not live. (+0.77) | Not confirmed | Klaviyo: [Campaign drafts](https://help.klaviyo.com/hc/en-us/articles/360002049952), 2026-10-17 |
| Saved versions | Not confirmed | Not confirmed | — |
| AI popup assistant | Not confirmed | Not confirmed | — |
Round score: Klaviyo +1.54 (total 35.44), OptinMonster +0 (total 5.6).
## Round 12: Data & reporting
Weight: 4.5 points.
Klaviyo reports submissions and revenue following form interactions, including revenue by test variation. Submitters can be grouped into a segment and exported. Custom reports can run on weekly or monthly schedules, and reporting APIs support external analysis. OptinMonster’s campaign comparison and integration routes support evaluating capture campaigns. A signup total is different from downstream purchase value or email engagement. The scored reporting rows distinguish confirmed analytics and export operations from capabilities that remain unconfirmed; a connector does not establish a native reporting API.
| Criterion | Klaviyo | OptinMonster | Evidence |
| --- | --- | --- | --- |
| Field mapping | Not confirmed | Not confirmed | — |
| Lead export | Build a segment of form submitters and export it to CSV. (+0.64) | Not confirmed | Klaviyo: [Lead export](https://help.klaviyo.com/hc/en-us/articles/4406228129051), 2026-10-17 |
| Scheduled reports | Weekly or monthly custom reports, sent as a download link. (+0.64) | Not confirmed | Klaviyo: [Scheduled reports](https://help.klaviyo.com/hc/en-us/articles/4407838420123), 2026-10-17 |
| Revenue goals | Revenue from orders after a form interaction, also per A/B variation. (+0.64) | Not confirmed | Klaviyo: [Revenue goals](https://help.klaviyo.com/hc/en-us/articles/360015960712), 2026-10-17 |
| Team notifications | Not confirmed | Not confirmed | — |
Round score: Klaviyo +1.93 (total 37.37), OptinMonster +0 (total 5.6).
## Round 13: Integrations
Weight: 4.5 points.
The OptinMonster-to-Klaviyo connection requires Pro or higher. Its existence is useful when adding a capture layer, but is not a reason to buy a second product for a form the existing stack already supplies. Klaviyo stores signups in its own profiles and sends its own email and SMS. Its marketplace connects stores, CRMs, review and loyalty systems, advertising tools and automation services. A flow can POST a webhook payload; that route is different from a dedicated form-submission webhook.
OptinMonster gates integration access by plan. HubSpot, Klaviyo, Zapier, webhooks and delivery to multiple providers are documented on Pro or higher. A simple email-list connection and a workflow sending the same response to several systems can therefore require different subscriptions.
| Criterion | Klaviyo | OptinMonster | Evidence |
| --- | --- | --- | --- |
| Email | Not confirmed | Kit: Requires Plus or higher and a published Kit form. Choose the form, optional tags or sequences, and map pre-created custom fields; spin-to-win coupon transfer is not supported. ActiveCampaign: Available from Basic. Connect with an API key, choose a list and map fields; Assigned Form links the signup to ActiveCampaign form automation and double opt-in settings. MailerLite: Connect the current or Classic MailerLite account, choose a group and map subscriber fields. Automatically created custom fields use text; create date or number fields in MailerLite first. Bento, Campaign Monitor, Constant Contact, iContact, MailPoet: The monthly pricing page includes these marketing connections in Basic. Mailchimp: Available on all plans. Connect an API key, select an audience, and map fields, tags and groups. Double opt-in defaults to on; create typed merge fields before mapping them. Omnisend: Send contacts with tags and mapped properties, with separate email and SMS subscription options. The guide documents welcome-email and wheel-coupon transfer; its Plus requirement conflicts with the pricing page. Brevo: Available on all plans. Connect with a Brevo API key, choose a list and map fields; automatically created attributes use text, and phone numbers go to the SMS attribute. Spin-to-win coupon data is not sent to Brevo. EmailOctopus: Dedicated guides document these connections and their minimum tier. (+0.25) | OptinMonster: [Omnisend](https://optinmonster.com/docs/how-to-connect-optinmonster-with-omnisend/), 2026-10-27; [MailerLite setup](https://optinmonster.com/docs/how-to-connect-optinmonster-with-mailerlite/), 2026-10-27; [ActiveCampaign setup](https://optinmonster.com/docs/connect-optinmonster-activecampaign/), 2026-10-27; [Integration requirements](https://optinmonster.com/docs/how-to-connect-to-an-email-service-provider/), 2026-10-27; [Kit](https://optinmonster.com/docs/connect-optinmonster-convertkit/), 2026-10-27; [EmailOctopus](https://optinmonster.com/docs/how-to-connect-optinmonster-with-emailoctopus/), 2026-10-27; [HubSpot](https://optinmonster.com/docs/connect-optinmonster-hubspot/), 2026-10-27; [Multiple providers](https://optinmonster.com/docs/send-data-to-multiple-providers/), 2026-10-27; [Analytics](https://optinmonster.com/docs/creating-your-first-optin/), 2026-10-27; [Monthly plan comparison](https://optinmonster.com/pricing/monthly/), 2026-10-27; [Klaviyo](https://optinmonster.com/docs/connect-optinmonster-with-klaviyo/), 2026-10-27; [HubSpot setup](https://optinmonster.com/docs/how-to-connect-optinmonster-with-custom-hubspot-form/), 2026-10-27; [Mailchimp setup](https://optinmonster.com/docs/connect-optinmonster-mailchimp/), 2026-10-27; [Brevo setup](https://optinmonster.com/docs/connect-optinmonster-sendinblue/), 2026-10-27 |
| SMS | Not confirmed | Not confirmed | — |
| CRM | Salesforce, Zoho, Pipedrive, Microsoft Dynamics: Sync leads and custom properties with CRM platforms. HubSpot: A HubSpot route is listed in the integration marketplace. Check the individual connector’s direction, partner subscription and supported properties before using it to deliver signup-form leads. (+0.13) | Klaviyo: Requires Pro or higher. Authorize Klaviyo, select a list and map fields. Create custom properties in Klaviyo first and use the dedicated phone field for numbers. HubSpot: Requires Pro or higher. Select a static list and map properties. Assigned Form additionally needs matching fields and a hubspotutk cookie; create typed properties in HubSpot first. (+0.13) | Klaviyo: [Integration catalogue](https://www.klaviyo.com/integrate), 2026-10-17; [How connections work](https://help.klaviyo.com/hc/en-us/articles/16741902158491), 2026-10-17; [Sync schedules](https://help.klaviyo.com/hc/en-us/articles/115005253208), 2026-10-17; [Developer documentation](https://developers.klaviyo.com/), 2026-10-17; [Klaviyo Marketplace](https://marketplace.klaviyo.com/en-us/browse/crm), 2026-10-17 · OptinMonster: [Omnisend](https://optinmonster.com/docs/how-to-connect-optinmonster-with-omnisend/), 2026-10-27; [MailerLite setup](https://optinmonster.com/docs/how-to-connect-optinmonster-with-mailerlite/), 2026-10-27; [ActiveCampaign setup](https://optinmonster.com/docs/connect-optinmonster-activecampaign/), 2026-10-27; [Integration requirements](https://optinmonster.com/docs/how-to-connect-to-an-email-service-provider/), 2026-10-27; [Kit](https://optinmonster.com/docs/connect-optinmonster-convertkit/), 2026-10-27; [EmailOctopus](https://optinmonster.com/docs/how-to-connect-optinmonster-with-emailoctopus/), 2026-10-27; [HubSpot](https://optinmonster.com/docs/connect-optinmonster-hubspot/), 2026-10-27; [Multiple providers](https://optinmonster.com/docs/send-data-to-multiple-providers/), 2026-10-27; [Analytics](https://optinmonster.com/docs/creating-your-first-optin/), 2026-10-27; [Monthly plan comparison](https://optinmonster.com/pricing/monthly/), 2026-10-27; [Klaviyo](https://optinmonster.com/docs/connect-optinmonster-with-klaviyo/), 2026-10-27; [HubSpot setup](https://optinmonster.com/docs/how-to-connect-optinmonster-with-custom-hubspot-form/), 2026-10-27; [Mailchimp setup](https://optinmonster.com/docs/connect-optinmonster-mailchimp/), 2026-10-27; [Brevo setup](https://optinmonster.com/docs/connect-optinmonster-sendinblue/), 2026-10-27 |
| Messaging | Not confirmed | Not confirmed | — |
| Customer lifecycle | Gorgias, Recharge, Zendesk, Intercom, Smile, LoyaltyLion, Yotpo, Stamped: Klaviyo and partner-built apps supply additional customer events. These are wider-platform connections, not all popup-specific. (+0.25) | Not confirmed | Klaviyo: [Integration catalogue](https://www.klaviyo.com/integrate), 2026-10-17; [How connections work](https://help.klaviyo.com/hc/en-us/articles/16741902158491), 2026-10-17; [Sync schedules](https://help.klaviyo.com/hc/en-us/articles/115005253208), 2026-10-17; [Developer documentation](https://developers.klaviyo.com/), 2026-10-17; [Klaviyo Marketplace](https://marketplace.klaviyo.com/en-us/browse/crm), 2026-10-17 |
| Analytics | Not confirmed | Google Analytics: Connect campaigns for additional performance reporting. (+0.25) | OptinMonster: [Omnisend](https://optinmonster.com/docs/how-to-connect-optinmonster-with-omnisend/), 2026-10-27; [MailerLite setup](https://optinmonster.com/docs/how-to-connect-optinmonster-with-mailerlite/), 2026-10-27; [ActiveCampaign setup](https://optinmonster.com/docs/connect-optinmonster-activecampaign/), 2026-10-27; [Integration requirements](https://optinmonster.com/docs/how-to-connect-to-an-email-service-provider/), 2026-10-27; [Kit](https://optinmonster.com/docs/connect-optinmonster-convertkit/), 2026-10-27; [EmailOctopus](https://optinmonster.com/docs/how-to-connect-optinmonster-with-emailoctopus/), 2026-10-27; [HubSpot](https://optinmonster.com/docs/connect-optinmonster-hubspot/), 2026-10-27; [Multiple providers](https://optinmonster.com/docs/send-data-to-multiple-providers/), 2026-10-27; [Analytics](https://optinmonster.com/docs/creating-your-first-optin/), 2026-10-27; [Monthly plan comparison](https://optinmonster.com/pricing/monthly/), 2026-10-27; [Klaviyo](https://optinmonster.com/docs/connect-optinmonster-with-klaviyo/), 2026-10-27; [HubSpot setup](https://optinmonster.com/docs/how-to-connect-optinmonster-with-custom-hubspot-form/), 2026-10-27; [Mailchimp setup](https://optinmonster.com/docs/connect-optinmonster-mailchimp/), 2026-10-27; [Brevo setup](https://optinmonster.com/docs/connect-optinmonster-sendinblue/), 2026-10-27 |
| Advertising | Meta Advertising, TikTok Advertising, Google Ads, Pinterest, Snapchat: Sync audiences and events with advertising platforms. (+0.25) | Not confirmed | Klaviyo: [Integration catalogue](https://www.klaviyo.com/integrate), 2026-10-17; [How connections work](https://help.klaviyo.com/hc/en-us/articles/16741902158491), 2026-10-17; [Sync schedules](https://help.klaviyo.com/hc/en-us/articles/115005253208), 2026-10-17; [Developer documentation](https://developers.klaviyo.com/), 2026-10-17; [Klaviyo Marketplace](https://marketplace.klaviyo.com/en-us/browse/crm), 2026-10-17 |
| Marketing tools | Not confirmed | Not confirmed | — |
| Store | Shopify, WooCommerce, BigCommerce, Adobe Commerce, PrestaShop, Salesforce Commerce Cloud, Wix: Bring store customer and order data into Klaviyo. Supported data and sync frequency differ by platform. (+0.25) | Not confirmed | Klaviyo: [Integration catalogue](https://www.klaviyo.com/integrate), 2026-10-17; [How connections work](https://help.klaviyo.com/hc/en-us/articles/16741902158491), 2026-10-17; [Sync schedules](https://help.klaviyo.com/hc/en-us/articles/115005253208), 2026-10-17; [Developer documentation](https://developers.klaviyo.com/), 2026-10-17; [Klaviyo Marketplace](https://marketplace.klaviyo.com/en-us/browse/crm), 2026-10-17 |
| Product recommendations | Not confirmed | Not confirmed | — |
| Personalization | Not confirmed | Not confirmed | — |
| Reviews | Judge.me, Loox, Okendo, REVIEWS.io, Junip: Bring review events and data into segments and flows. (+0.25) | Not confirmed | Klaviyo: [Integration catalogue](https://www.klaviyo.com/integrate), 2026-10-17; [How connections work](https://help.klaviyo.com/hc/en-us/articles/16741902158491), 2026-10-17; [Sync schedules](https://help.klaviyo.com/hc/en-us/articles/115005253208), 2026-10-17; [Developer documentation](https://developers.klaviyo.com/), 2026-10-17; [Klaviyo Marketplace](https://marketplace.klaviyo.com/en-us/browse/crm), 2026-10-17 |
| Content | Not confirmed | Not confirmed | — |
| Custom forms | Not confirmed | External form HTML: Embed a provider form when a native connection is unavailable; this is not a native field-mapping integration. (+0.25) | OptinMonster: [Omnisend](https://optinmonster.com/docs/how-to-connect-optinmonster-with-omnisend/), 2026-10-27; [MailerLite setup](https://optinmonster.com/docs/how-to-connect-optinmonster-with-mailerlite/), 2026-10-27; [ActiveCampaign setup](https://optinmonster.com/docs/connect-optinmonster-activecampaign/), 2026-10-27; [Integration requirements](https://optinmonster.com/docs/how-to-connect-to-an-email-service-provider/), 2026-10-27; [Kit](https://optinmonster.com/docs/connect-optinmonster-convertkit/), 2026-10-27; [EmailOctopus](https://optinmonster.com/docs/how-to-connect-optinmonster-with-emailoctopus/), 2026-10-27; [HubSpot](https://optinmonster.com/docs/connect-optinmonster-hubspot/), 2026-10-27; [Multiple providers](https://optinmonster.com/docs/send-data-to-multiple-providers/), 2026-10-27; [Analytics](https://optinmonster.com/docs/creating-your-first-optin/), 2026-10-27; [Monthly plan comparison](https://optinmonster.com/pricing/monthly/), 2026-10-27; [Klaviyo](https://optinmonster.com/docs/connect-optinmonster-with-klaviyo/), 2026-10-27; [HubSpot setup](https://optinmonster.com/docs/how-to-connect-optinmonster-with-custom-hubspot-form/), 2026-10-27; [Mailchimp setup](https://optinmonster.com/docs/connect-optinmonster-mailchimp/), 2026-10-27; [Brevo setup](https://optinmonster.com/docs/connect-optinmonster-sendinblue/), 2026-10-27 |
| Data & validation | Not confirmed | Not confirmed | — |
| Spreadsheets | Not confirmed | Not confirmed | — |
| Automation | Shopify Flow, Zapier: Connect Shopify Flow and Zapier workflows to Klaviyo. (+0.13) | Zapier, Webhooks: Connect additional destinations, including spreadsheet or CRM workflows, through an intermediary or endpoint. (+0.13) | Klaviyo: [Integration catalogue](https://www.klaviyo.com/integrate), 2026-10-17; [How connections work](https://help.klaviyo.com/hc/en-us/articles/16741902158491), 2026-10-17; [Sync schedules](https://help.klaviyo.com/hc/en-us/articles/115005253208), 2026-10-17; [Developer documentation](https://developers.klaviyo.com/), 2026-10-17; [Klaviyo Marketplace](https://marketplace.klaviyo.com/en-us/browse/crm), 2026-10-17 · OptinMonster: [Omnisend](https://optinmonster.com/docs/how-to-connect-optinmonster-with-omnisend/), 2026-10-27; [MailerLite setup](https://optinmonster.com/docs/how-to-connect-optinmonster-with-mailerlite/), 2026-10-27; [ActiveCampaign setup](https://optinmonster.com/docs/connect-optinmonster-activecampaign/), 2026-10-27; [Integration requirements](https://optinmonster.com/docs/how-to-connect-to-an-email-service-provider/), 2026-10-27; [Kit](https://optinmonster.com/docs/connect-optinmonster-convertkit/), 2026-10-27; [EmailOctopus](https://optinmonster.com/docs/how-to-connect-optinmonster-with-emailoctopus/), 2026-10-27; [HubSpot](https://optinmonster.com/docs/connect-optinmonster-hubspot/), 2026-10-27; [Multiple providers](https://optinmonster.com/docs/send-data-to-multiple-providers/), 2026-10-27; [Analytics](https://optinmonster.com/docs/creating-your-first-optin/), 2026-10-27; [Monthly plan comparison](https://optinmonster.com/pricing/monthly/), 2026-10-27; [Klaviyo](https://optinmonster.com/docs/connect-optinmonster-with-klaviyo/), 2026-10-27; [HubSpot setup](https://optinmonster.com/docs/how-to-connect-optinmonster-with-custom-hubspot-form/), 2026-10-27; [Mailchimp setup](https://optinmonster.com/docs/connect-optinmonster-mailchimp/), 2026-10-27; [Brevo setup](https://optinmonster.com/docs/connect-optinmonster-sendinblue/), 2026-10-27 |
| Custom connections | REST API, SDKs, Webhooks: Build a custom connection for profiles, events and other supported resources; flows can call a webhook. (+0.25) | Not confirmed | Klaviyo: [Integration catalogue](https://www.klaviyo.com/integrate), 2026-10-17; [How connections work](https://help.klaviyo.com/hc/en-us/articles/16741902158491), 2026-10-17; [Sync schedules](https://help.klaviyo.com/hc/en-us/articles/115005253208), 2026-10-17; [Developer documentation](https://developers.klaviyo.com/), 2026-10-17; [Klaviyo Marketplace](https://marketplace.klaviyo.com/en-us/browse/crm), 2026-10-17 |
Round score: Klaviyo +1.5 (total 38.87), OptinMonster +1 (total 6.6).
## Round 14: Shopify
Weight: 12.6 points.
Klaviyo connects Shopify customers, products, orders and events to profiles and flows. Forms can target cart conditions and customer segments, including tags and order history. Unique Shopify coupons support signup incentives and automatic application at checkout; product data also powers follow-up emails. Installing a popup on a Shopify storefront is separate from reading its cart, generating a discount or adding a product. OptinMonster’s general lead-generation offer should be evaluated against the specific store operations in the table. Unconfirmed cart and coupon capabilities do not become supported merely because a campaign can appear on a store.
| Criterion | Klaviyo | OptinMonster | Evidence |
| --- | --- | --- | --- |
| Storefront installation | A native Shopify app is available. (+0.79) | Not confirmed | Klaviyo: [Shopify evidence](https://apps.shopify.com/klaviyo-email-marketing), 2026-10-01 |
| Native Shopify app | A native app is available in the Shopify App Store. (+0.79) | Not confirmed | Klaviyo: [Shopify evidence](https://apps.shopify.com/klaviyo-email-marketing), 2026-10-01 |
| Built for Shopify | No | No | Klaviyo: [App website](https://apps.shopify.com/klaviyo-email-marketing), 2026-10-13 · OptinMonster: [App website](https://optinmonster.com/pricing/), 2026-10-13 |
| Shopify media assets | Not confirmed | Not confirmed | — |
| Shopify products and variants | Not confirmed | Not confirmed | — |
| Shopify collections | Not confirmed | Not confirmed | — |
| Shopify discount assets | Klaviyo generates unique Shopify discount codes for forms and flows, and records discount codes used on orders. (+0.79) | Not confirmed | Klaviyo: [Form coupons](https://help.klaviyo.com/hc/en-us/articles/6038674938523), 2026-10-17 |
| Shopify metafields and metaobjects | Not confirmed | Not confirmed | — |
| Shopify customer data | Bring Shopify customer and order data into Klaviyo. (+0.79) | Not confirmed | Klaviyo: [Shopify evidence](https://help.klaviyo.com/hc/en-us/articles/16741902158491), 2026-10-05 |
| Shopify customer synchronization | Customers and consent sync from Shopify into Klaviyo, and an optional setting syncs profile data and subscription status from Klaviyo back to Shopify. (+0.79) | Not confirmed | Klaviyo: [Klaviyo for Shopify](https://help.klaviyo.com/hc/en-us/articles/115005080407), 2026-10-17; [Shopify evidence](https://help.klaviyo.com/hc/en-us/articles/16741902158491), 2026-10-05 |
| Shopify events and triggers | Klaviyo tracks Shopify Added to Cart, Checkout Started and Placed Order events, usable as flow triggers and segment conditions. (+0.79) | Not confirmed | Klaviyo: [Shopify data in Klaviyo](https://help.klaviyo.com/hc/en-us/articles/115005080447), 2026-10-17 |
| Shopify audience and cart targeting | Forms can target Shopify cart value and products, and lists or segments built from Shopify customer and order data. (+0.79) | Not confirmed | Klaviyo: [Form targeting](https://help.klaviyo.com/hc/en-us/articles/4413544555547), 2026-10-17 |
| Apply a Shopify discount | A Shopify unique coupon created through a form is applied automatically to the customer's cart at checkout. (+0.79) | Not confirmed | Klaviyo: [Form coupons](https://help.klaviyo.com/hc/en-us/articles/6038674938523), 2026-10-17 |
| Add a Shopify product to cart | Not confirmed | Not confirmed | — |
| Buy now / direct checkout | Not confirmed | Not confirmed | — |
| Shopify Flow | Not confirmed | Not confirmed | — |
Round score: Klaviyo +6.3 (total 45.17), OptinMonster +0 (total 6.6).
## Round 15: Pricing
Weight: 10 points.
Compare Klaviyo alone with Klaviyo plus OptinMonster when that is the actual setup. Substituting OptinMonster’s popup fee for Klaviyo’s profile and sending fee would understate the total. Klaviyo charges for active profiles and email volume rather than pageviews. Free covers 250 profiles and 500 monthly emails. The first paid email tier costs $20 for up to 500 profiles and 5,000 emails; removing form branding requires paid access. SMS has separate pricing.
OptinMonster Pro is advertised at a first-year equivalent of $37 per month, billed annually, for 25,000 campaign impressions and three sites. Renewal is $870 per year, or $72.50 per month on an equivalent basis. Growth is a higher tier for geolocation and wheels; Plus can cover simpler A/B-tested capture campaigns.
| Criterion | Klaviyo | OptinMonster | Evidence |
| --- | --- | --- | --- |
| A small website (visitors / mo: 1,000, pageviews / mo: 2,000, website: 1) | $0 / mo · Free. Klaviyo bills active profiles and email sends, not pageviews, so form traffic alone fits the Free plan. (+1) | Not confirmed | Klaviyo: [Klaviyo pricing](https://www.klaviyo.com/pricing), 2026-10-17 |
| Visitors explore more pages (visitors / mo: 10,000, pageviews / mo: 60,000, website: 1) | $0 / mo · Free. Klaviyo bills active profiles and email sends, not pageviews, so form traffic alone fits the Free plan. (+1) | Not confirmed | Klaviyo: [Klaviyo pricing](https://www.klaviyo.com/pricing), 2026-10-17 |
| A higher-traffic website (visitors / mo: 50,000, pageviews / mo: 100,000, website: 1) | $0 / mo · Free. Klaviyo bills active profiles and email sends, not pageviews, so form traffic alone fits the Free plan. (+1) | Not confirmed | Klaviyo: [Klaviyo pricing](https://www.klaviyo.com/pricing), 2026-10-17 |
| Two websites on one account (visitors / mo: 10,000 total, pageviews / mo: 20,000 total, websites: 2) | Not confirmed | Not confirmed | — |
| Launch popups without vendor branding (visitors / mo: 1,000, pageviews / mo: 2,000, website: 1) | $20 / mo · Email · 251–500 contacts. Removing Klaviyo branding from forms needs a paid plan; the first email tier covers up to 500 profiles. (+1) | Not confirmed | Klaviyo: [Klaviyo Shopify app](https://apps.shopify.com/klaviyo-email-marketing), 2026-10-17 |
| Run a sale or promotion (visitors / mo: 1,000, pageviews / mo: 2,000, website: 1) | $20 / mo · Email · 251–500 contacts. Forms with a coupon work on Free, but 500 contacts exceed its 250-profile limit; the first email tier covers them. (+1) | Not confirmed | Klaviyo: [Klaviyo Shopify app](https://apps.shopify.com/klaviyo-email-marketing), 2026-10-17 |
| Improve popup conversion with A/B testing (visitors / mo: 1,000, pageviews / mo: 2,000, website: 1) | $0 / mo · Free. Form A/B tests are available on Free, and 250 contacts fit its limit. (+1) | Not confirmed | Klaviyo: [Klaviyo pricing](https://www.klaviyo.com/pricing), 2026-10-17 |
| Collect data and feedback with surveys, quizzes and forms (visitors / mo: 1,000, pageviews / mo: 2,000, website: 1) | $0 / mo · Free. Forms with text and choice fields are available on Free within its 250-profile limit. (+1) | Not confirmed | Klaviyo: [Klaviyo pricing](https://www.klaviyo.com/pricing), 2026-10-17 |
| Signup plus an automated welcome email (visitors / mo: 1,000, pageviews / mo: 2,000, website: 1, active contacts: 500, emails / mo: 1,000) | $20 / mo · Email · 251–500 contacts. Welcome flows are native; 500 active profiles exceed Free, and the first email tier allows 5,000 sends a month. (+1) | Not confirmed | Klaviyo: [Klaviyo Shopify app](https://apps.shopify.com/klaviyo-email-marketing), 2026-10-17 |
| Popups and email marketing in one platform (visitors / mo: 5,000, pageviews / mo: 10,000, website: 1, active contacts: 500, emails / mo: 5,000) | $20 / mo · Email · 251–500 contacts. Campaigns, segments and flows are included; the 500-profile tier allows 5,000 emails a month. (+1) | Not confirmed | Klaviyo: [Klaviyo Shopify app](https://apps.shopify.com/klaviyo-email-marketing), 2026-10-17 |
Round score: Klaviyo +9 (total 54.17), OptinMonster +0 (total 6.6).
## The final score
Klaviyo is the natural starting point for a business already using its profiles, segments and message flows. OptinMonster is an additional capture option when its editor, display controls or publishing roles meet a specific need. The relevant cost is then the combined stack, not a choice between two interchangeable email subscriptions.
| Round | Klaviyo | OptinMonster |
| --- | --- | --- |
| Formats & content | 2.89 | 2.89 |
| Forms | 6.95 | 0.48 |
| Surveys | 0 | 0 |
| Gamification | 0.4 | 0.13 |
| Targeting | 8.1 | 0.45 |
| Experiments | 4.2 | 0.7 |
| Email & SMS | 3 | 0 |
| Team & sites | 2.81 | 0.56 |
| Developer | 3.75 | 0.38 |
| Support | 1.8 | 0 |
| Editor & workflow | 1.54 | 0 |
| Data & reporting | 1.93 | 0 |
| Integrations | 1.5 | 1 |
| Shopify | 6.3 | 0 |
| Pricing | 9 | 0 |
| Total | 54.17 | 6.6 |
## What matters most to you?
First, check that each tool can do the task. An absent or unconfirmed required capability means a dash with an explanation instead of a scenario score, and no winner highlight. Only qualifying tools share the points; a sole qualifier earns the full weight of each criterion it meets. 70 points go to the criteria directly related to it, and 30 to everything else. For “Popups without email marketing”, all 100 points go to the included capabilities and relevant popup pricing scenarios; unwanted features and email sending have zero weight. Both tools earn points for confirmed capabilities; unconfirmed ones earn zero. The first row keeps the original overall score.
| What matters to me | Klaviyo | OptinMonster |
| --- | --- | --- |
| The overall feature set | 54.17 | 6.6 |
| Popups without email marketing | 54.2 | 9.61 |
| Collecting more leads | 53.13 | 6.48 |
| Driving clicks and actions | 59 | 6.65 |
| Popups and email marketing in one service | 59.81 | — · Required capability unconfirmed |
| Running campaigns for my Shopify store | 52.65 | — · Required capability unconfirmed |
| A/B testing and measuring results | 55.88 | 6.52 |
| Creating and editing campaigns with AI | — · Required capability unconfirmed | — · Required capability unconfirmed |
| Collecting data and feedback | 48.61 | — · Required capability unconfirmed |
| Working with a team or managing clients | 59.88 | 10.65 |
| Connecting AI agents to my workflow | 75.29 | — · Required capability unconfirmed |
## How the comparison works
These scores are relative to Klaviyo and OptinMonster in this comparison. They cannot be carried over to comparisons with other products: each tool’s points depend on what the other participant offers.
1. **Relative scores, not universal ratings.** The same capability earns half the points when both tools have it, and all the points when only one does. Changing the opponent can therefore change a product’s score without changing the product itself. The review pages separately show absolute capability ratings without price.
2. **One shared pool of 100 points.** The 15 rounds cover 196 criteria. Each round has a set weight, divided equally among its criteria. These weights are our editorial choices.
3. **How features earn points.** If both products meet a criterion, they split its points equally. If only one does, it earns all of them. An unconfirmed capability earns zero. If neither qualifies, those points are not awarded, so the two totals can add up to less than 100.
4. **How prices earn points.** Ten scenarios carry 1 point each. We use the cheapest confirmed plan meeting each scenario’s traffic and feature requirements, billed monthly in USD. Equal prices split the point; a plan costing half as much earns twice the share. A free qualifying plan beats a paid one. If only one suitable plan and price are confirmed, it earns the full point.
5. **Which plans count.** Feature rounds cover capabilities across the products’ plans. The total does not describe a single subscription; the pricing scenarios identify the plan needed for each stated use case.
6. **How your priorities change the score.** A tool must first meet the task’s required capabilities. If a requirement is absent or unconfirmed, its scenario score is shown as a dash and it cannot be the winner; the status explains why. Only qualifying tools participate in point allocation and price comparisons. A sole qualifying tool earns the full weight of each criterion it meets; criteria it does not meet remain unearned. Standard priorities assign 70 points to their relevant criteria and 30 to the rest, preserving relative weights within each group. “Popups without email marketing” instead distributes all 100 points among its included criteria, preserving their relative weights and giving everything else zero. It includes lead capture, testing, reporting and external handoff. Its pricing criteria exclude email sending and feedback workloads. Included email features carry no penalty: only the required plan price counts. The evidence and scoring rules stay the same. The overall-feature row keeps the original weights.
## See also
- [Email signup popup tools](https://popuppapa.com/best-email-signup-popup-tools/index.md): Compare the wider selection for capturing and qualifying email leads.
- [Popup integrations](https://popuppapa.com/popup-integrations/index.md): Explore how forms connect to email platforms, CRMs and other workflows.
- [Popup software for agencies](https://popuppapa.com/best-popup-software-for-agencies/index.md): Compare multiple-site access and client campaign workflows.