PostHog

Open source product analytics with feature flags and session replay

Visit Website → Free up to 1M events, then usage-based

PostHog combines analytics, feature flags, session recording, and A/B testing in one platform. The free tier is generous enough for most startups.

Great for solo founders who want product analytics depth without paying for multiple tools.

Pros

  • All-in-one product analytics
  • Generous free tier
  • Self-hosting option

Cons

  • Can be complex to set up
  • Steeper learning curve

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