Flagsmith suits teams releasing changes gradually across web, mobile, or server-side applications.
Free plan Free trial Open source From $40 a month AndroidiPhone & iPadWebWindowsMacLinux+2
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Best Feature Flag & Experimentation Platforms 2026
These platforms let teams manage who sees a feature and test product changes against one another. This guide helps buyers compare pricing, code access, trials and supported platforms.
Entries are presented without a scoring order. Use the published plan and capability details to narrow the tools that fit your product and deployment needs.
02
GrowthBook
AndroidiPhone & iPadWeb+3 Record6.0 Visit
03
DevCycle
It suits developers and wider teams that need to manage feature flags, gradual releases, and experiments.
AndroidiPhone & iPadWeb+5 Record5.8 Visit
04
LaunchDarkly Experimentation
It suits product, marketing, and business teams, as well as developers, product managers, and data scientists who need to run and analyze experiments.
AndroidiPhone & iPadWeb+1 Record5.6 Visit
05
PostHog
PostHog may suit product teams seeking analytics, session replay, feature flags, and data routing in one platform.
AndroidiPhone & iPadWeb+5 Record5.6 Visit
6
ConfigCat
AndroidiPhone & iPadWeb+4 $110 a month Record5.5 Visit ConfigCat suits development teams that need to manage feature access and rollout behavior across applications.
8
Statsig
AndroidiPhone & iPadWeb+3 $150 a month Record5.3 Visit Statsig suits product teams that need experimentation, feature rollout controls, and analytics in one platform.
9
FeatBit
WebAPISelf-hosted $3,999 a year Record5.1 Visit FeatBit suits development teams managing controlled releases, experiments, and targeting.
Before you choose
Compare free and paid plans
Several entries include a free tier. Published paid starting points are $110 per month for ConfigCat, $500 per month billed annually for DevCycle, and $3,999 per year for FeatBit.
Check whether the free tier covers the feature controls and usage you need before moving to a paid plan.
Check trial access
Some entries provide time-limited trials. Flagsmith and Flipt specify 14 days, whereas Kameleoon specifies 30 days.
Confirm trial length and what remains available when the trial ends.
Match your deployment platforms
Match the supported platform to where your application runs.
If self-hosting matters, verify that the product supports your intended setup.
Review code access and licences
Some entries make their source code available. When code access or modification matters, review the tool's licence and deployment terms.
A hosted service may fit a different operating model than a self-hosted deployment.
Questions
Are free plans available from these platforms?
Some entries provide a free plan, including ConfigCat, DevCycle, FeatBit, Flagsmith, Flipt, GrowthBook and Harness Continuous Delivery.
Which tools list free trials?
Flagsmith and Flipt specify 14-day trials, while Kameleoon specifies a 30-day trial.
Which environments do these tools support?
Support listed for this category includes web, API, Android, iOS, self-hosted and macOS; consult each product's details for your required platform.
Is self-hosting supported by any feature flag platform?
Self-hosted deployment appears among the supported options in this category. Confirm the product's deployment and licence terms before choosing.
Do any of these platforms provide open-source code?
Some entries provide open-source code. Review the applicable licence and deployment terms before changing or hosting it.
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