Poptin vs OptinMonster: Email Included or a Popup Layer

The short answer: consider Poptin if your list is under 500 contacts and nobody has picked an email platform yet: its Emails & Poptins Growth plan runs the popups and sends the follow-up for $19 a month, with 5,000 visitors included (Poptin pricing, checked on 26 October 2026). Consider OptinMonster if Klaviyo, Mailchimp or another platform already does the sending and the job is a set of display rules; Plus costs $324 for its first year with 10,000 impressions on two sites, and exit intent waits for Pro (OptinMonster pricing).

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These two are not often searched as a pair, and they are not built for the same buyer. Poptin is a popup tool that grew an email product beside it. OptinMonster is a popup layer that hands every address to someone else's email product.

What to count first:

1. Visitors against impressions. Poptin counts a unique visitor once in a 30-day window, however many pages they open; OptinMonster counts impressions and advises 20 to 30% headroom over pageviews (Poptin pricing FAQ, OptinMonster pricing FAQ). For example, 9,000 visitors reading 3 pages each = 27,000 pageviews. Poptin's Basic plan covers the 9,000 visitors for $240 a year; OptinMonster's rule gives 27,000 x 1.2 = 32,400 to 27,000 x 1.3 = 35,100 impressions, past Pro's 25,000, unless campaigns run on only some pages.
2. The email platform you have, or the one you do not. With none, Poptin's free plan already holds 250 active contacts and 500 emails. With one, Poptin's popup-only plans and its 70+ native integrations do the job without a second sender (Poptin pricing).
3. The number that proves it. Confirmed subscribers per 1,000 visitors in the tool that sends the email, against the last four weeks. A submit counted by the popup is not yet a subscriber.

Which plan fits which situation

What separates them

The bundle

Poptin's Emails & Poptins plans add segments, campaigns and automations to the popups, and price by active contacts as well as visitors; a contact counts for the whole billing cycle once it was subscribed or unconfirmed, even if it unsubscribes later that cycle (Poptin pricing FAQ). OptinMonster never sends: its pricing FAQ says it integrates with every major email marketing service, and Basic lists Mailchimp, MailerLite and Omnisend among them (monthly pricing). If your email programme already has a sending reputation and flows that work, the bundle is a second sender you do not need.

Where the features sit

Poptin's plan comparison marks the exit-intent trigger, A/B testing, Zapier and webhooks as included on every plan, Free too, and reserves the Autopilot trigger for paid plans (plan comparison). OptinMonster opens its rules by tier: time and scroll on Basic, device and inactivity on Plus, Exit-Intent with referrer, cookie and scheduling rules on Pro, geolocation on Growth (display rules). Unless you need OptinMonster's finer rules, Poptin's entry plans carry more of the toolkit.

Free before paid

On a site under 1,000 visitors a month, Poptin's free plan already carries an exit-intent popup, an A/B test and a Zapier link to your email platform (plan comparison), so four weeks on it settle whether an exit popup lifts confirmed signups above your baseline. OptinMonster has no free tier; its 14-day money-back guarantee is the nearest thing, and it starts after you pay (pricing page).

Prices on 26 October 2026

Poptin's popup-only plans, USD, checked on 26 October 2026: Free for 1,000 visitors on 1 domain; Basic $25 a month or $240 billed yearly for 10,000; Pro $59 or $564 yearly for 50,000 visitors on 4 domains; Agency $119 or $1,140 yearly from 150,000 visitors on unlimited domains (Poptin pricing). With email, Growth starts at $19 a month for 500 active contacts and 5,000 visitors.

OptinMonster, USD, first year then renewal, checked the same day: Basic $108 then $210, Plus $324 then $570, Pro $444 then $870, Growth $804 then $1,470; month by month, $21, $57, $87 and $147 (annual pricing, monthly pricing).

An agent on Poptin's API

Poptin has no MCP server yet; its developer page calls one coming soon and points agents to the public API at api.popt.in/v1, authenticated with a pk_live_ bearer key (MCP page). Two endpoints are enough for a weekly review: Poptin Analytics returns each poptin's numbers, and Pause poptin switches one off (analytics endpoint, pause endpoint). The agent reads the analytics, writes a short note naming any poptin that showed often and converted rarely, and proposes a pause. The human check: nothing is paused until a person reads the note against the dashboard and approves the call, and the agent never edits a poptin's offer or copy.

The year you sign up for

OptinMonster's pricing FAQ says new plans are billed annually by default and renew automatically, with monthly plans on a separate page for those who want to explore (pricing FAQ). The default checkout is a year paid up front at the introductory price; the second year arrives at full price unless someone cancels before the renewal date. Diary that date on the day you buy.

Choose Poptin if

• Your job is catching the address and sending the welcome email from one login, on a small list.
• You need exit intent, A/B tests or Zapier without paying for a higher tier.
• An agent should be able to read results and pause campaigns through an API.

Choose OptinMonster if

• Your job is converting traffic into an email platform you are keeping, with rules by referrer, cookie or schedule.
• Your visitors read many pages and campaigns run on few of them, so impressions stay low.
• You want 700+ templates to start from (homepage).

The welcome-email build in Poptin is walked through in How to Use Poptin.

FAQ

Does Poptin count a returning visitor twice?

It counts a unique visitor once per 30 days unless they clear cookies or switch device or browser (Poptin pricing FAQ).

Can OptinMonster send the welcome email itself?

No. It passes the address to your email platform, which sends the email.

Is Poptin's free plan time-limited?

The pricing FAQ calls the free account unlimited for 1,000 visitors, with no credit card required (Poptin pricing FAQ).