PostHog Is Quietly Winning Product Analytics

PostHog free tier covers 1 million events per month — genuinely enough for most early-stage products. It bundles session recordings, feature flags, A/B testing, and error tracking. That feature breadth at zero cost is unusual.

The migration from Mixpanel to PostHog among YC companies was privacy-motivated initially — self-hosted PostHog means user data never leaves your infrastructure. The value stayed: feature flags integrated with analytics, session recordings tied to user journeys, A/B test results all in one dashboard.

Mixpanel and Amplitude remain competitive at enterprise scale with advanced cohort analysis and predictive features. The gap is specifically at the product-market-fit stage where PostHog breadth at zero cost makes it the obvious default.