Listed alphabetically. A tool is ranked by its reviews once it has 3.
| Tool | Reviews | Lowest paid plan | Free plan | Free trial | Public API | Runs on | Main features |
|---|---|---|---|---|---|---|---|
| Crazy EggCrazy Egg shows how to improve engagement and conversion rates on your website. | ReviewsNone yetWrite one for Crazy Egg | Lowest paid plan$29per month, billed annuallyStarter, as of November 14, 2026 | Free planYes | Free trial30 days | Public APINot confirmed | Runs onNot confirmed | Main features
|
 GrowthBookThe warehouse-native platform for experimentation, feature flags, and product analytics | ReviewsNone yetWrite one for GrowthBook | Lowest paid plan$40per seat per monthPro, as of October 23, 2026 | Free planYes | Free trialNot confirmed | Public APIYes | ||
 MidaLightweight A/B testing to experiment, analyze and ship conversion wins in minutes. | ReviewsNone yetWrite one for Mida | Lowest paid plan$224per month, billed annually, starting at 50,000 tracked usersPaid, as of November 14, 2026 | Free planYes | Free trialNot confirmed | Public APIYes | ||
 StatsigThe modern product development platform | ReviewsNone yetWrite one for Statsig | Lowest paid plan$150per monthPro, as of October 23, 2026 | Free planYes | Free trialNot confirmed | Public APIYes | ||
 WebflowCreate powerful, custom websites with your team on Webflow. | ReviewsNone yetWrite one for Webflow | Lowest paid plan$15per site per month, billed yearlyBasic, as of November 13, 2026 | Free planYes | Free trialNot confirmed | Public APIYes |
From each tool's own website. “Not confirmed” means we couldn't confirm it there, not that the tool doesn't have it. Each tool's page says when its facts were checked.
How this list is made
A tool is listed here only when we've confirmed on its own website that it has a free plan. Tools we couldn't confirm it for are left out, even if they may have it. Vendors can't pay for a place on this list. Add a tool we missed