Flagsmith vs PostHog: Feature Flags Comparison (2026)
Flagsmith offers unlimited feature flags, projects, environments, identities, and segments, along with custom fields, real-time flag updates, scheduled flags, and priority support. PostHog provides a generous free tier, usage-based pricing, unlimited team members, and community support.
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
- ✓Generous free tier
- ✓Usage-based pricing
- ✓Unlimited team members
- ✓Community support
When to choose Flagsmith
Flagsmith is suitable for users who require unlimited feature flags, projects, environments, identities, and segments, along with support for custom fields, real-time updates, and scheduled flags. It also offers priority support for enterprise plans.
When to choose PostHog
PostHog is suitable for users who prefer a usage-based pricing model and need a generous free tier with unlimited team members and community support. It also offers robust analytics features.