Best A/B Testing · head-to-head
GrowthBook vs LaunchDarkly
A sourced, side-by-side comparison for a/b testing. GrowthBook has the lower entry price. Every figure links to the vendor's own page and the date we captured it.
At a glance
- Price: GrowthBook $0/mo vs LaunchDarkly $0/mo — GrowthBook is cheaper to start.
- Free tier: GrowthBook Yes; LaunchDarkly Yes.
- HIPAA: GrowthBook Yes; LaunchDarkly Yes.
Side by side
| GrowthBook | LaunchDarkly | |
|---|---|---|
| Entry price | $0/mo (Cloud Starter) | $0/mo (Developer) |
| Free tier | Yes | Yes |
| HIPAA (BAA) | Yes | Yes |
| SOC 2 | Yes | Yes |
| GDPR | Yes | Yes |
| Best for | Engineering and data teams wanting warehouse-native experimentation without vendor data lock-in | AI engineering teams needing runtime control of agent behavior without redeploys |
Sources — GrowthBook: growthbook.io (verified 2026-06-14). LaunchDarkly: launchdarkly.com (verified 2026-06-14).
Key features
GrowthBook: Warehouse-native experimentation connecting directly to existing data warehouses; Feature flags with auto-rollback and ramp schedules with guardrails; Open-source with self-hosted option (air-gapped deployment supported); 24+ SDKs with zero network calls and sub-millisecond evaluation; Product analytics with AI Data Analyst; SOC 2 Type II, ISO 27001, GDPR, CCPA, COPPA certified; No PII required — only aggregate data accessed from warehouse; SAML/SCIM SSO (Okta, Azure AD) on Enterprise; Fine-grained RBAC and audit trails; MCP Server for AI coding assistant integration; Open mandatory code review for all pull requests; Positioned as approx. 1/5th cost of comparable solutions
LaunchDarkly: Feature flags with targeting, progressive rollouts, and percentage-based releases; CodeControl: feature management for traditional software with observability; AgentControl: AI agent behavior control, evaluation, and observability; A/B/n testing and multi-armed bandits (MAB); Automated rollback based on real-time guardrail metrics (Guardian tier); 50 trillion+ flag evaluations daily; <200ms global config propagation; Session replay, error monitoring, logs, and traces built in; 25+ native SDKs across frontend, backend, mobile, and AI platforms; FedRAMP Authorized (Moderate level); SOC 2 Type II, ISO 27001, ISO 27701 certified; GDPR/CCPA compliant; SAML SSO, MFA, RBAC, and audit logging; EU data residency option available; Privacy-by-design: no PII required for flag evaluation