Open-source product analytics, replay, flags and experiments in one self-hostable platform.
PostHog bundles product analytics, session replay, feature flags, A/B testing, surveys and error tracking, available as cloud or fully self-hosted. For a team that would otherwise buy four products, the consolidation is the point — and the generous free tier means small teams often pay nothing.
Best for
Free tier available
Free tierFree tier: Large monthly free allowance across every product, plus free self-hosting.
What drives the bill: Usage-based pricing per product with a substantial free tier; most small teams stay free indefinitely.
Check current pricing on PostHog’s siteFigures are indicative and were last reviewed August 2026. Vendors change pricing often; confirm before you commit.
No reviews of PostHog yet. If you have used it in anger, yours would be the first.
If PostHog is not the right fit, these solve the same problem differently.
Session Replay
Behavioural product analytics with strong cohort and retention analysis.
Session Replay
Event analytics with fast, self-serve reporting non-analysts can actually use.
A/B & Flags
Feature flags, experimentation and product analytics in one warehouse-friendly platform.
A/B & Flags
Open-source feature flags and experimentation that runs on your data warehouse.