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 |
|---|---|---|---|---|---|---|---|
 FlagsmithOpen source feature flag service | ReviewsNone yetWrite one for Flagsmith | Lowest paid plan$45per monthStart-Up, as of October 23, 2026 | Free planYes | Free trial14 days | Public APIYes | Runs onSlack | Main features
|
 FliptGit-native feature flags that eliminate deployment fear | ReviewsNone yetWrite one for Flipt | Lowest paid plan$200per monthFlipt Pro, as of October 23, 2026 | Free planYes | Free trial14 days | Public APIYes | ||
 LaunchDarklyTake control of your code and agents at runtime | ReviewsNone yetWrite one for LaunchDarkly | Lowest paid plan$10per service connection per month, billed yearly, plus $8.33 per 1k client-side MAUFoundation, as of October 23, 2026 | Free planYes | Free trial14 days | Public APIYes | ||
 ReflagTypeScript feature management that gets you back to building, faster. | ReviewsNone yetWrite one for Reflag | Lowest paid plan$125per month, $100 on annual billingPro, as of October 28, 2026 | Free planYes | Free trialYes | Public APIYes | ||
 UnleashThe FeatureOps control plane built for enterprises | ReviewsNone yetWrite one for Unleash | Lowest paid plan$75per seat per month, billed monthly by credit cardPay-As-You-Go, as of October 23, 2026 | Free planYes | Free trial14 days | 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 trial. 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