PostHog vs Heap
PostHog and Heap are both evaluated in the CIOPages Product Analytics Platforms Buyer's Guide. The guide groups PostHog under Open-Source All-in-One and Heap under Autocapture + DX.
| Attribute | PostHog | Heap (Contentsquare) |
|---|---|---|
| Approach | Open-Source All-in-One | Autocapture + DX |
| Best for | Engineering-led teams wanting analytics, replay, flags, and experiments in one self-hostable, cost-transparent open-source stack | Teams wanting low-instrumentation autocapture analytics combined with digital-experience and session-replay insight under one roof |
From the Product Analytics Platforms Buyer's Guide, updated June 2026. 8 vendors evaluated.
PostHog
One open-source stack covers all of it, and it is built for engineers: product analytics, web analytics, session replay, feature flags, experiments, surveys, a CDP, and a data warehouse together, with an MIT-licensed core you can self-host for data control and residency or run as managed cloud, a generous free tier, transparent usage-based pricing, and one of the most actively developed tools in the space. It is engineering-led by design, so non-technical product teams get less hand-holding than in Mixpanel or Amplitude. Self-hosting is only advisable at modest event volumes before migrating to cloud, so “free and self-hosted forever” is a misread, breadth means each module is strong rather than always the deepest, and governance tooling is maturing.
Heap (Contentsquare)
Autocapture was its invention and is still the reason to choose it: analyze user behavior retroactively without having instrumented every event in advance, which lowers the upfront tracking-plan burden, and as part of Contentsquare it now pairs product analytics with digital-experience analytics, session replay, and zone-based and multi-touch insight for a fuller web-and-app picture. Autocapture trades upfront effort for downstream governance — a flood of captured events still needs curation to be trustworthy. The Contentsquare combination is an integration path to track, positioning now spans product and marketing analytics, data resides in the vendor platform, and the broader digital-experience suite is more than a pure-play analytics buyer needs.
Also evaluated in this guide
Amplitude, Google Analytics 4, Kubit, Mixpanel, Pendo, Statsig
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