Is Flagsmith or GrowthBook cheaper?

Flagsmith has the lower entry price — Flagsmith starts at $0/mo and GrowthBook at $0/mo.

Does Flagsmith or GrowthBook support HIPAA?

HIPAA support — Flagsmith: —; GrowthBook: Yes. Confirm current scope with the vendor.

Flagsmith vs GrowthBook

A sourced, side-by-side comparison for feature flags. Flagsmith has the lower entry price. Every figure links to the vendor's own page and the date we captured it.

Flagsmith has the lower entry price — Flagsmith starts at $0/mo, GrowthBook at $0/mo. Free tier: Flagsmith Yes, GrowthBook Yes. HIPAA: Flagsmith —, GrowthBook Yes.

As of 2026-06-14 · figures link to their source below

Side by side

Flagsmith

$0/mo entry

Entry price$0/mo (Free)

Free tierYes

HIPAA (BAA)—

SOC 2Yes

GDPRYes

Best forTeams wanting open-source self-hosted control

GrowthBook

$0/mo entry

Entry price$0/mo (Starter)

Free tierYes

HIPAA (BAA)Yes

SOC 2Yes

GDPRYes

Best forData teams wanting warehouse-native experimentation without vendor data access

Sources — Flagsmith: flagsmith.com (verified 2026-06-14) · GrowthBook: growthbook.io (verified 2026-06-14)

Key features

Flagsmith: Open-source self-hosted option (full feature parity); OpenFeature provider support for vendor-agnostic evaluation; Multi-variate flags with A/B and MVT testing built in; Scheduled flag changes on paid plans

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

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