GrowthBook
GrowthBook is a warehouse-native feature flagging and experimentation platform used by over 2,700 companies.
Our verdict
Who it's for
Open-source feature flags and A/B testing
Who should look elsewhere
Requires a data warehouse connection for experiment analysis, not plug-and-play
Pros
- +Warehouse-native approach means experiment data never leaves your infrastructure
- +Generous free tier with unlimited flags, experiments, and traffic
- +Open-source edition supports unlimited users at no cost
- +Ultra-lightweight SDKs with local evaluation keep latency near zero
- +Enterprise-grade statistics (CUPED, sequential, bandits) included in Pro plan
Cons
- −Requires a data warehouse connection for experiment analysis, not plug-and-play
- −Free cloud plan limited to 3 users with no advanced statistics
- −Pro plan at $40/user/month can get expensive for large teams
- −Self-hosted deployment needs infrastructure expertise and ongoing maintenance
- −Visual editor and advanced testing features are only available on paid plans
Key features
- ✓Warehouse-native experiment analysis on Snowflake, BigQuery, and Redshift
- ✓Bayesian and Frequentist statistical engines with CUPED and sequential testing
- ✓Lightweight feature flag SDKs (9KB JS) with local evaluation and zero network requests
- ✓Visual A/B test editor for no-code experiments on websites
- ✓Multi-arm bandit testing for automated traffic allocation
- ✓Safe rollouts with automatic rollback on metric regressions
- ✓Sticky bucketing for consistent user experiences across sessions
- ✓Advanced permissioning and approval workflows for enterprise teams
- ✓SOC 2, ISO 27001, GDPR, COPPA, and CCPA compliance
- ✓Open-source self-hosted option with unlimited users and flags
Pricing
| Plan | Price | Billing | Notes |
|---|---|---|---|
| Starter (Cloud) | $0 | month | Up to 3 users; Unlimited feature flags; Unlimited experiments |
| Pro (Cloud) | $40 | month | Up to 50 users; Advanced statistics (CUPED, sequential testing); Visual A/B test editor |
| Enterprise (Cloud) | — | month | Unlimited users; SSO/SAML integration; Advanced access control and approval flows |
| Open Source (Self-Hosted) | $0 | month | Unlimited users; Unlimited feature flags and experiments; Warehouse-native analysis |