PostHog
Open-source product analytics, session replay, feature flags, and A/B testing. Self-hostable alternative to Mixpanel/Amplitude — know how users really use your product. Session replays link to the events that triggered them, so a funnel drop can be watched rather than inferred.

PostHog, as it opens in a browser tab.
Not sure how to add PostHog to your home screen? Step-by-step for Chrome, Safari, Firefox and Edge — it takes about ten seconds, and there is no app store involved.
Own PostHog? Have us re-run this measurement — we open it in a real browser, cut the network, and send you what survived.
How to install PostHog as a PWA
Screenshots
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