Best Feature Flags · head-to-head

ConfigCat vs Flagsmith

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.

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

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

Side by side

ConfigCat

$0/mo entry
Entry price$0/mo (Forever Free)
Free tierYes
HIPAA (BAA)
SOC 2
GDPRYes
Best forTeams with very high config download volumes needing predictable flat pricing

Flagsmith

$0/mo entry
Entry price$0/mo (Free)
Free tierYes
HIPAA (BAA)
SOC 2Yes
GDPRYes
Best forTeams wanting open-source self-hosted control

Sources — ConfigCat: configcat.com (verified 2026-06-14) · Flagsmith: flagsmith.com (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)

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

← All feature flags compared · Open data