PostHog

PostHog bundles product analytics, session replay, feature flags, and even survey tools into one open source platform, aimed at product teams rather than marketers. Some podcast startups building their own listening apps or membership platforms use it as their all in one data layer.

It's a strong choice if you're technical and building a product around your podcast, not just distributing an RSS feed, since it covers a lot of ground that would otherwise require several separate tools.

For a typical podcaster with no custom app, there's simply nothing to instrument, and the learning curve to get value from PostHog isn't worth it without an actual product behind it.

The self hosted option exists for teams wanting full control, but most people use the cloud version and pay based on usage once they exceed the free monthly event allowance.