PostHog logo
FreemiumAnalyticsSince 2020

PostHog

Open-source product analytics + feature flags + session replay.

4.7·posthog.com·Verified 2026-05-09
Visit PostHog

About

An all-in-one OSS suite for understanding how people use your product — events, funnels, surveys, experiments.

Best for

Product teams who want event analytics + replay + flags without buying 4 separate tools.

Pros

  • Replays + flags + experiments + surveys in one tool
  • Generous free tier
  • Self-host friendly

Cons

  • UI is busy compared to Plausible
  • Usage-based pricing scary at scale
  • Setup takes longer than basic analytics
Replaced Mixpanel + LaunchDarkly + FullStory with one PostHog instance.
— Founder review

Tags

Free tierAI-nativeShipping AI productsB2B SaaSGrowth / acquisition

Alternatives