Best Feature Flags · head-to-head
ConfigCat vs GrowthBook
A sourced, side-by-side comparison for feature flags. ConfigCat has the lower entry price. Every figure links to the vendor's own page and the date we captured it.
At a glance
- Price: ConfigCat $0/mo vs GrowthBook $0/mo — ConfigCat is cheaper to start.
- Free tier: ConfigCat Yes; GrowthBook Yes.
- HIPAA: ConfigCat —; GrowthBook Yes.
Side by side
| ConfigCat | GrowthBook | |
|---|---|---|
| Entry price | $0/mo (Forever Free) | $0/mo (Starter) |
| Free tier | Yes | Yes |
| HIPAA (BAA) | — | Yes |
| SOC 2 | — | Yes |
| GDPR | Yes | Yes |
| Best for | Teams with very high config download volumes needing predictable flat pricing | Data teams wanting warehouse-native experimentation without vendor data access |
Sources — ConfigCat: configcat.com (verified 2026-06-14). GrowthBook: growthbook.io (verified 2026-06-14).
Key features
ConfigCat: Client-side flag evaluation — user data never leaves customer systems; ISO 27001:2022 certified; EU-only data storage option available on all plans; Unlimited seats on every plan including free tier; Audit log retention from 7 days (Pro) up to 2 years (Enterprise)
GrowthBook: Warehouse-native architecture — aggregate data only, no PII ever leaves customer's data warehouse; Advanced statistics: CUPED variance reduction, sequential testing, multi-arm bandits; Visual A/B test editor (no-code experiment creation); Open-source self-hosted option with full feature parity; SOC 2 Type II + ISO 27001 certified