Best Experimentation Platforms in 2026
Updated
In short: Confidence by Spotify is ranked #1 of 23 as of 4 October 2026, ahead of Bucketeer and GrowthBook. The best-ranked option with a free plan is Bucketeer. The lowest first paid tier on this page is Marpipe at $0.50/mo.
Experimentation platforms help teams structure experiments and assess results across product or feature work. Compared on experiment methods and statistical model, the entries also differ in feature rollouts, mobile experiments, and server-side experiments. Confidence by Spotify, Bucketeer, and GrowthBook are among the options shown. Check included users and free-plan availability for access details, and compare paid-from pricing for cost context. The right capabilities to weigh depend on the experiments you plan to run and the rollout and analysis approaches you need.
23 experimentation platforms ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
7 of the 23 here have a free tier you can use, 0 have open-source code on record, and 0 have full bars: free, open, on most of your devices and documented.
| # | App | Signal | Free tier | Open code | Devices | From | Score |
|---|---|---|---|---|---|---|---|
| 1 | Confidence by SpotifyWeb · Android · iPhone · API | Three bars | — | 3 of 6 | $449/mo | 6.6 | |
| 2 | BucketeerWeb · Android · iPhone · Self-hosted · API | Three bars | — | 3 of 6 | Free | 6.5 | |
| 3 | GrowthBookWeb · Android · iPhone · Self-hosted · API | Three bars | — | 3 of 6 | $40/mo | 6.5 | |
| 4 | StatsigWeb · Android · iPhone · API | Three bars | — | 3 of 6 | $150/mo | 6.5 | |
| 5 | MarpipeWeb · Extension | Two bars | — | 1 of 6 | $0.50/mo | 6.4 | |
| 6 | AmplitudeAPI | Two bars | — | 0 of 6 | Free | 6.3 | |
| 7 | Optimizely ExperimentationWeb · Android · iPhone | Two bars | — | 3 of 6 | Free | 6.3 | |
| 8 | Optimizely Feature ManagementWeb · Android · iPhone | Two bars | — | — | 3 of 6 | — | 5.4 |
| 9 | ABsmartlyWeb · Windows · Mac · Linux · Android · iPhone · Self-hosted · API · Extension | Two bars | — | — | 6 of 6 | — | 5.3 |
| 10 | Adobe TargetWeb · Android · iPhone | One bar | — | — | 3 of 6 | — | 5.2 |
| 11 | ConductricsWeb · Android · iPhone | One bar | — | — | 3 of 6 | — | 5.2 |
| 12 | MonetateWeb · Android · iPhone | One bar | — | — | 3 of 6 | — | 5.2 |
| 13 | VWO Feature ExperimentationWeb · Android · iPhone · API | Two bars | — | — | 3 of 6 | — | 5.2 |
| 14 | EppoWeb · Android · iPhone · API | Two bars | — | — | 3 of 6 | — | 5.1 |
| 15 | KameleoonWeb · Android · iPhone · API | Two bars | — | — | 3 of 6 | $495/mo | 5.1 |
| 16 | Optimizely Configured CommerceWeb · API | One bar | — | — | 1 of 6 | — | 5.1 |
| 17 | RunPivotWeb | No signal | — | — | 1 of 6 | — | 5.1 |
| 18 | VWO TestingWeb · Android · iPhone · Self-hosted · API | Two bars | — | — | 3 of 6 | — | 5.1 |
| 19 | AB TastyWeb · Android · iPhone | One bar | — | — | 3 of 6 | — | 5.0 |
| 20 | Convert ExperiencesWeb · Android · iPhone | One bar | — | — | 3 of 6 | — | 4.9 |
| 21 | Evolv AIWeb · Android · iPhone | One bar | — | — | 3 of 6 | — | 4.9 |
| 22 | adoNo platforms listed | No signal | — | — | 0 of 6 | — | 4.8 |
| 23 | ComposeWeb | No signal | — | — | 1 of 6 | — | 4.6 |
Is your app on this list?
Numbered spots on this list can be sponsored. They are labelled, and the editorial order and scores never change for payment.
Questions about this list
Which experimentation platform is ranked first on Freedom251?
Confidence by Spotify is ranked #1 of 23 with a score of 6.6. Bucketeer is second and GrowthBook third.
How many of these have a free plan?
7 of the 23 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, Marpipe has the lowest first paid tier we found: $0.50/mo.
How is this list ranked?
Ranked free-and-open first: a usable free tier and open-source code, then the platforms it runs on and its documentation. Paid placements never change a rank.