Split testing tool reviews
What each A/B testing tool does well, where it falls short, and who it suits. Sourced from each tool's own site.
AB Tasty is a Paris-born experimentation and personalization platform for websites and apps, now part of Wingify after its 2026 merger with VWO.
On request
Amplitude Experiment is Amplitude's A/B testing product, split into Feature Experimentation for code-based tests and Web Experimentation with a visual editor, both built on Amplitude analytics.
Free plan, paid plans vary
Coframe is an AI platform that writes new versions of your website's copy, layout and images, tests them, and keeps shifting traffic toward the versions that convert best.
On request
Convert Experiences is a privacy-focused A/B testing platform with published prices, a visual editor, frequentist and Bayesian stats, and full-stack testing on its Pro plan.
From $299/month
Crazy Egg is a website behavior analytics tool with heatmaps, session recordings and surveys, plus built-in A/B testing on its Plus plan and above.
From $29/month
Eppo is a warehouse-native experimentation and feature flag platform that Datadog bought in 2025 and now sells as Datadog Experiments.
From $450/month
Google Optimize was Google's free A/B testing and personalization tool for websites, built on Google Analytics, with a paid Optimize 360 version for enterprises.
Discontinued
GrowthBook is an open-source, warehouse-native platform for feature flags, A/B tests and product analytics that you can use in the cloud or host yourself.
From $40/month
Intelligems is a Shopify app for testing and personalizing prices, shipping, content, offers and checkout, with results scored on profit per visitor.
From $55/month
Kameleoon is an experimentation platform for web, feature and mobile app tests, built around Prompt-Based Experimentation (PBX), where you describe a change and AI builds the variant.
From $495/month
LaunchDarkly is a feature management platform for engineering teams, with experimentation, observability and AI config tools built on its feature flags.
Free plan, paid plans vary
Mutiny was a B2B website personalization platform. Since its 2026 relaunch it's an AI agent that creates customer-facing sales and marketing assets such as deal rooms, business cases and ABM campaign pages.
Discontinued
Optimizely is an enterprise experimentation platform with a visual editor for website tests, SDKs for server-side and feature tests, and Opal AI agents that help plan and build experiments.
Free plan, paid plans vary
PostHog Experiments is the A/B testing product inside PostHog, an open-source product platform that also covers analytics, session replay, feature flags and a data warehouse.
Free plan, paid plans vary
RevenueCat is a subscription and in-app purchase backend for iOS, Android and web apps, and its Experiments feature A/B tests prices, trials and paywalls and reports the results on revenue and lifetime value.
Free plan, paid plans vary
Shoplift is a Shopify app for A/B testing themes, templates, URLs and, on higher plans, prices, with results reported on revenue per visitor from Shopify orders.
From $74/month
Statsig is a feature flag and experimentation platform with built-in product analytics and session replay, owned by Amplitude since May 2026.
From $150/month
Superwall lets subscription apps design, target and A/B test paywalls on iOS, Android and web without shipping an app update, with a free subscription backend underneath.
Free plan, paid plans vary
Unbounce is a drag-and-drop landing page builder with built-in A/B testing and an AI feature, Smart Traffic, that routes each visitor to the variant most likely to convert them.
From $22/month
VWO is a website A/B testing and conversion optimization suite from Wingify, now sold under the Wingify name after its 2026 merger with AB Tasty.
On request
Webflow Optimize is Webflow's paid add-on for A/B testing, rules-based personalization and AI-driven variant delivery, built into the Webflow editor.
From $299/month
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.