PostHog
The broadest replacement, with a free tier that carries real products
The strongest all-round alternative and our first recommendation for most teams leaving Amplitude on cost. Funnels, retention, session replay, feature flags and experiments in one open-source product, with a free tier large enough that plenty of teams never pay. Analysis is shallower than Amplitude’s, which is the trade you are making.
Strengths
- Replay, feature flags and experiments included rather than sold separately
- Free tier large enough for most early-stage products
- Open source, self-hostable, no vendor lock-in on the data
Trade-offs
- Usage-based billing still moves with volume
- Analytical depth does not reach Amplitude’s
- Large surface area to learn and govern