Flagsmith vs GrowthBook: Feature Flags Comparison (2026)
Flagsmith and GrowthBook both offer feature flagging solutions with free tiers. Flagsmith emphasizes unlimited flags, projects, environments, identities, and segments, while GrowthBook highlights unlimited experiments, a visual editor, and customizable dashboards. GrowthBook has a clear starting price per seat, whereas Flagsmith does not fully specify pricing details.
AI Citation Scorecard
How often each is cited by major AI engines when buyers ask feature flags questions. Last 90 days across ChatGPT, Perplexity, Gemini, Claude, and Copilot.
Probes run hourly; each (engine × query) combo retests every ~3 days.
Pricing
Key Features
- ✓Unlimited Feature Flags
- ✓Unlimited Projects
- ✓Unlimited Environments
- ✓Unlimited Identities and Segments
- ✓Custom Fields
- ✓Real-Time Flag Updates
- ✓Scheduled Flags
- ✓Priority Support
- ✓Unlimited feature flags
- ✓Unlimited experiments
- ✓Visual editor
- ✓Safe rollouts
- ✓Customizable dashboards
- ✓Advanced permissioning
- ✓Dedicated support
- ✓Managed warehouse option
When to choose Flagsmith
Flagsmith is suitable for users who require unlimited feature flags, projects, environments, identities, and segments, along with real-time and scheduled flag updates. Its support for custom fields and various authentication integrations like Okta, SAML, ADFS, and LDAP also makes it a strong choice. Flagsmith offers a free plan for solo developers and flexible deployment options.
When to choose GrowthBook
GrowthBook is suitable for users who need unlimited feature flags and experiments, a visual editor, safe rollouts, and customizable dashboards. Its advanced permissioning and managed warehouse option are beneficial for data-intensive use cases. GrowthBook provides flexible pricing with a clear starting price, dedicated support, and over 24 SDKs.