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PostHog sells open-source software that helps product and engineering teams understand how people use their apps and test new features.
PostHog is a software company that gives product and engineering teams a toolkit for understanding what people actually do inside their apps. Instead of guessing why users click, drop off, or get confused, teams plug PostHog into their website or app and watch real behavior unfold: what people click, where they get stuck, and which new features make things better or worse.
The toolkit covers four main jobs. Product analytics shows how people move through an app and which features get used. Session replay lets teams watch recordings of real user sessions, like a security camera for your website. Feature flags let engineers switch new features on or off for specific groups of users, and experiments let them run A/B tests to see which version performs better. The company's twist is that its core code is open source, meaning anyone can inspect it, run it themselves, or contribute to it. That builds trust with technical buyers and gives PostHog a free marketing engine, since engineers often discover it by reading the code. PostHog makes money by selling hosted versions of these tools, so customers pay a subscription rather than running everything themselves. Pricing is usage-based: the more events and sessions a company tracks, the more it pays, which means revenue grows as customers grow. Its customers are mostly tech companies and product teams, and it competes with giants like Amplitude and Mixpanel on analytics and with a crowded field of session-replay and feature-flag vendors. Its bet is that bundling all these tools in one place, with transparent open-source roots, beats stitching together several separate products.
The company is based in San Francisco and was founded in 2020 by James Hawkins and Tim Glaser, who built it after selling an earlier startup. It has grown fast on a lean, developer-focused model and raised venture funding to expand. The main risk is competition from bigger, well-funded platforms that can bundle similar features, but PostHog's open-source approach and all-in-one pitch have won it a loyal following among engineers who dislike bloated, expensive analytics suites.
Saved answer · last researched 15 Nov 2026