Amplitude vs PostHog

Amplitude and PostHog both provide product analytics, but they differ substantially in pricing model, deployment options, and the breadth of their tooling. Amplitude is an enterprise product analytics platform with polished dashboards, AI-powered insights, and a sophisticated behavioral cohort engine built for growth and product teams at scaling companies. PostHog is an open-source product analytics suite that combines event tracking, session recordings, feature flags, A/B testing, and surveys in a single platform — available as a self-hosted deployment or managed cloud, with a generous free tier of 1M events/month.

The pricing difference is significant at scale. Amplitude charges based on monthly tracked users (MTUs), and costs can become substantial as user bases grow into tens of thousands of MAU. PostHog's transparent per-event pricing on managed cloud and completely free self-hosted option make it dramatically more accessible for early-stage companies and developer tools. The tradeoff is platform maturity: Amplitude's Journeys analysis, Predictive Analytics, and Behavioral Cohorts are more sophisticated than PostHog's equivalents for complex multi-touch attribution and forecasting.

PostHog's breadth is its strongest differentiator — combining analytics, session replay, feature flags, and A/B testing in one platform eliminates the need for separate Amplitude, FullStory, LaunchDarkly, and Optimizely subscriptions. For engineering-led teams comfortable with self-hosting and interested in consolidating their product tooling, PostHog's value proposition is compelling. Choose Amplitude if you need enterprise-grade behavioral analytics with advanced funnel analysis, sophisticated AI insights, or deep BI integrations for a growth team. Choose PostHog if you want analytics plus session replay plus feature flags in one open-source platform, or if pricing predictability and data ownership are priorities.