PostHog
Product analytics, session replay, feature flags, error tracking and surveys in one tool, with a free allowance that resets every month.
Free tier
- 1M analytics events, 5K session recordings, 1M feature-flag requests per month
- 100K exceptions for error tracking
- No credit card; usage stops at the free limits on the free plan
Best for
Understanding what users actually do after launch.
Watch out: The free plan includes 1 project and 1-year data retention. Session recordings are kept for 1 month.
Sources
Checked on 2026-11-11. Vendors change pricing often, so confirm on the official page before you commit.