Flagsmith vs GrowthBook
On the evidence we track, GrowthBook leads this comparison with a composite score of 73/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.
Capabilities
Feature-by-feature on the axes that matter for feature flag software. “-” means undocumented, not absent.
What each one is
The product in its own terms, so the numbers below have context.
Flagsmith
An open-source platform for managing feature flags and remote configuration across web, mobile, and server-side applications. Enables controlled rollouts, A/B testing, and runtime configuration changes without code deployment.
GrowthBook
LeaderA platform combining feature flags, A/B testing, and product analytics that runs natively on your data warehouse (Snowflake, BigQuery, etc.), enabling teams to run experiments, roll out features safely, and analyze results without moving data to external tools.
Pricing
List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.
Flagsmith
Free tier (50k requests/month). Paid plans from $40/month.
- FreeFree
- Up to 50,000 requests per month
- 1 team member
- Unlimited feature flags
- Unlimited environments
- Unlimited identities and segments
- +1 more
- Start-Up$40/month
- 1,000,000 requests per month
- 3 team members
- Email technical support
- Scheduled flags
- 3rd party integrations
- Growing$50/seat/month
- SAML/SSO authentication
- Governance features (roles, permissions, change requests, audit logs)
- Priority email and chat technical support
- EnterpriseContact sales
- Custom hosting solutions
- Real-time technical support via chat
- Enterprise SLA
GrowthBook
LeaderFree cloud plan for up to 3 users. Pro and Enterprise with custom pricing. Overage charges for CDN and managed warehouse usage.
- StarterFree
- Unlimited feature flags
- Unlimited experiments
- Base experimentation
- Experiment history & audit log
- Stale flag management
- +5 more
- ProAdvanced experimentation features for scaling teams
- Up to 30 users
- Sequential testing
- CUPED variance reduction
- Sticky bucketing
- URL split tests
- +3 more
- EnterpriseContact sales
- Unlimited users and events
- SAML-based single sign-on
- SCIM user provisioning
- Approval workflows
- Exportable audit logs
- +5 more
- Self-HostedFree
- Unlimited users
- Open source (MIT license)
- Custom JavaScript validation
- Microservices architecture support
Platform & deployment
Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.
Integrations
What each product connects to. Counts come from the vendor's own integration directory where one exists.
- Jira
- Okta
Flagsmith
- Analytics platforms (for A/B testing)
- OpenFeature standard
- GitHub
- GitLab
- Sentry
- Datadog
- OpenTelemetry
GrowthBook
Leader- Rollbar
- Figma
- Snowflake
- BigQuery
- Databricks
- Redshift
- Vercel
- ClickHouse
- Postgres
- MySQL
- Athena
- Presto
- Segment
- Mixpanel
- Amplitude
- Google Analytics
- OpenFeature
- Slack
- Claude Code
- Cursor
- VS Code
- Azure AD
- Notion
Flagsmith or GrowthBook: which one depends on you
A composite score cannot know your constraints. Describe them and both get re-weighted against what you actually need, with the evidence behind every position.
Free to run, no account needed to start. How the evaluation works
Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.