GrowthBook
6.9/10Best free warehouse-native, MIT with event data in your VPC
MIT-licensed warehouse-native flags; Cloud Free 3 users plus OSS self-host free forever; ~7K GitHub stars.
| Plan | Monthly | Annual | What you get |
|---|---|---|---|
| Cloud Free | Free | — | Free for up to 3 users with unlimited feature flags and unlimited experiments running directly against your warehouse |
| Pro | $40.00/mo | $480.00/yr | $40 per seat a month with CUPED, sequential testing, multi-arm bandits, visual A/B editor, and premium support |
| Enterprise (cloud or self-host) | Custom | Custom | Custom pricing with SSO/SAML, audit logs, approval flows, prerequisite flags, advanced metrics, and dedicated support |
| OSS (self-host) | Free | — | MIT-licensed self-hosted free forever with unlimited users and unlimited traffic |
GrowthBook is the warehouse-native free pick and the only catalog option where event data never leaves the customer VPC on the SaaS UI. Founded 2020 in San Francisco by Graham McNicoll and Jeremy Dorn. MIT-licensed with around 7,000 GitHub stars by 2026. Bootstrapped small-team. The wedge for free readers: experiments run directly against the customer's own Snowflake, BigQuery, Redshift, ClickHouse, or Postgres on Cloud Free; the SaaS UI orchestrates queries and stores config only.
Cloud Free covers up to three users with unlimited flags and unlimited experiments. Pro is the upgrade tier at forty dollars per seat monthly with up to fifty users plus CUPED, sequential testing, multi-arm bandits, and a visual A/B editor. Enterprise covers SAML SSO, audit logs, and approval flows at custom contract pricing. OSS self-hosted is MIT free forever with unlimited users and traffic.
The trade-off versus Statsig is closed-source SaaS posture; GrowthBook is MIT OSS where Statsig is closed-source SaaS. The trade-off versus PostHog is bundle scope; GrowthBook is flags-and-experiments-focused where PostHog bundles broader analytics. For free HIPAA, FedRAMP, or EU GDPR teams that want a SaaS UI without sending event data to the vendor, GrowthBook is the only catalog fit.
Pros
- Only catalog pick where event data never leaves the customer VPC (warehouse-native)
- MIT-licensed OSS self-host free forever with unlimited users and traffic
- Cloud Free covers three users with unlimited flags and unlimited experiments
- Pro upgrade at forty dollars per seat unlocks CUPED, sequential testing, multi-arm bandits
- Around 7,000 GitHub stars by 2026; bootstrapped small-team since 2020
Cons
- Smaller SDK ecosystem than LaunchDarkly or Unleash at this stage
- No FedRAMP authorization yet; LaunchDarkly is the only catalog FedRAMP pick
Best for: Free HIPAA, FedRAMP, or EU GDPR teams that want a SaaS UI without sending event data to the vendor and modern data-warehouse teams.
- Targeting
- 10
- Rollout
- 8
- DX
- 8
- Value
- 9
- Support
- 7