Outtest vs Webflow Optimize
Webflow Optimize and Outtest both run A/B tests on live pages and both use AI, but in different places. Optimize lives inside Webflow. You build each variation in the Designer, set a target goal such as a click, page view or form submission, and either run a classic test or let AI Optimize route each visitor to the variation most likely to convert them. Its AI Assistant suggests ideas you can launch as variations.
Outtest uses AI agents for the whole loop. It reads your analytics and payment data, finds where the funnel loses money, writes the new version, runs it and calls the winner on revenue per visitor from a payment tool such as Stripe, Shopify or Paddle. It installs on Webflow through an app, works on other builders too, and also tests trials, cancel flows, Meta ads and SEO. Webflow is an established platform. Outtest is new and has no track record yet.
At a glance
| Outtest | Webflow Optimize | |
|---|---|---|
| Best for | Founders and small teams who want tests run for them and judged on real revenue, without a CRO specialist. | Marketing teams whose site runs on Webflow and who want to test and personalize pages in the same tool they design in. |
| Price | From $29/month (3 tests a month). 20% off yearly. | An add-on priced by monthly page views, from $299/month billed yearly ($379 month to month) for 25,000 page views up to $1,199/month ($1,499) for 500,000. It sits on top of a paid Webflow site plan from $15/month billed yearly. Enterprise and non-Webflow sites are priced by sales. |
| Free plan or trial | No free plan or trial | No free plan |
| AI builds the test versions | Yes | Yes |
| Judges tests on revenue from your payment tool | Yes | Partly |
| Visual editor | No | Yes |
| Server-side tests | Partly | Partly |
| Stats engine | Bayesian, on revenue per visitor | Not published |
| Payment integrations | Stripe, Shopify, Polar, Whop, Paddle, Lemon Squeezy, Gumroad, Dodo Payments, Creem, RevenueCat, Chargebee | None listed |
Pick Webflow Optimize if
- Your site is on Webflow and your team wants to build every variation in the Designer.
- You want rules-based personalization by location, device, UTM or behavior, not only A/B tests.
- You want AI to show different winning variations to different visitors rather than one winner for all.
- You're a B2B team on Enterprise that wants firmographic targeting through 6sense, Demandbase, Salesforce or HubSpot.
- Your goal is leads or clicks rather than revenue.
Pick Outtest if
- You want tests judged on revenue per visitor from your payment tool, not clicks or form fills.
- You want AI agents to find what to test and call the winner, not only suggest ideas.
- You want to test trial length, cancel flows, onboarding copy, Meta ad copy or SEO page groups as well as pages.
- Your testing budget is $29 to $99 a month rather than $299 or more.
- Your site isn't on Webflow and you'd rather see a public price than go through sales.
The verdict
If your team lives in Webflow and wants personalization as well as testing, Optimize fits neatly into the tool you already use. If you want tests scored on revenue and run end to end by AI at a lower entry price, Outtest is the closer match. Outtest is new, so it has no track record to set against Webflow's.
Questions people ask
How much does Webflow Optimize cost?+
$299 a month billed yearly, or $379 month to month, for up to 25,000 page views a month. Tiers go up to $1,199 a month billed yearly ($1,499 monthly) for 500,000 page views. You also need a paid site plan, from $15 a month billed yearly.
Is Webflow Optimize included in Webflow site plans?+
No. It's an optional add-on for paid site plans such as Basic and Premium, and Webflow's help center says site add-ons aren't available on Starter or Ecommerce site plans. Enterprise customers get Optimize Enterprise through sales.
Can I use Webflow Optimize on a non-Webflow site?+
Yes. Webflow says non-Webflow sites can deploy Optimize with a JavaScript snippet placed high in the page head. Pricing for non-Webflow sites goes through its sales team.
What does AI Optimize do?+
AI Optimize serves each visitor the variation most likely to convert them, based on the optimization's target goal, and keeps learning as visitor behavior shifts. You create the variations and the AI decides who sees which one.
Can Webflow Optimize measure revenue?+
Not from a payment tool directly. Goals can be clicks, page views, form submissions through HubSpot or Marketo, or custom goals your site code fires with JavaScript, and a site goal such as total revenue can be tracked that way. Outtest instead reads revenue per visitor from the payment tool.
Sources
Checked on 28 September 2026 from Webflow Optimize's own pages. Prices and features change; check Webflow Optimize's site before you buy.
- webflow.com/pricing
- webflow.com/feature/optimize
- help.webflow.com/hc/en-us/articles/33609390628243-Intro-to-Webflow-Optimize
- help.webflow.com/hc/en-us/articles/34167265641107-Optimization-goals-overview
- help.webflow.com/hc/en-us/articles/34167147351315-Variation-statistical-significance-overview
- help.webflow.com/hc/en-us/articles/33961239129619-Manage-add-ons
- help.webflow.com/hc/en-us/articles/42067001590163-Surge-protection-for-overages
- university.webflow.com/resources/optimize-checklist-for-non-webflow-sites
- webflow.com/blog/webflow-acquires-intellimize
- webflow.com/company/about
Let Outtest run your split tests
AI agents read your analytics and payments, find where you lose the most money, build the fix and test it. Every test is judged on revenue, not clicks. Plans from $29 a month.