PostHog Product Analytics — Open-Source User Behavior Tracking Platform
PostHog integrates product analytics, session replay, feature flags, A/B testing, and user surveys into a single open-source platform, freeing teams from stitch
PostHog brings product analytics, session replay, feature flags, A/B testing, and user surveys together in a single open-source platform, so teams no longer need to stitch together multiple tools for each capability. Its free tier provides 1 million analytics events and 5,000 recordings per month — enough headroom to cover the real-world usage of most startups. The Core Problem PostHog Solves: Tool Fragmentation Tracking product data end to end used to mean running four or five tools at once: Google Analytics for traffic, Mixpanel for behavioral analysis, Hotjar for recording user sessions, LaunchDarkly for managing feature toggles. Each tool has its own pricing, its own instrumentation, and data that never talks to the others — engineers burn a huge amount of time just maintaining SDKs. PostHog's approach is to converge all of these features onto the same underlying user data. Because every module shares one set of events and user identities, when a funnel analysis shows a high drop-off at a given step, you can jump straight to the session replays for those users and see exactly where on screen they got stuck. As of 2025, PostHog serves "more than 190,000 customers, covering 65% of Y Combinator startups" (source: Sacra) . What the All-in-One Platform Includes PostHog currently offers six product lines: Product Analytics (funnels, retention, trends), Session Replay (including mobile), Feature Flags (with multivariate testing), Experiments (an A/B testing framework), Surveys (in-app questionnaires), and the Data Warehouse added in 2024 (query external data sources such as Stripe and Hubspot directly). The PostHog 2024 annual report shows the platform processing over 3 billion events per month, with annual revenue growth above 100%. Compared with Amplitude or Mixpanel, which routinely run to thousands of dollars a month, PostHog's pricing model starts free and charges per million events beyond that. Self-Hosted Deployment vs. Cloud PostHog supports fully self-hosted d
Reviewed and verified by FeiYueh · Last verified 2026-08-17. Independently maintained — not AI-generated boilerplate.
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