PostHog

What is PostHog?

PostHog is a product analytics platform that combines analytics, session replay, feature flags, error tracking and a data warehouse for software teams.

As of Oct 2026, PostHog has a free plan and paid plans start at Usage-based (source: posthog.com).

PostHog bundles many product tools under one signup, each with a monthly free allowance; you pay per use above it. Most of its code is public under an MIT licence.

Best for: Product and engineering teams that want analytics and product tools in one place.

Key features

• Product analyticsTrack events and user behaviour; the first 1M events each month are free.
• Session replayWatch recordings of user sessions; 5K recordings free each month.
• Feature flags and experimentsRoll out features gradually and run A/B tests; 1M flag requests free monthly.
• Error trackingGroup exceptions and stack traces into issues; 100K exceptions free monthly.
• SurveysCollect in-app survey responses from users; 1,500 responses free monthly.
• Data warehouseSync data from 120+ sources like Stripe and Postgres and query it with SQL.

Pricing checked Oct 2026. Current prices: posthog.com. Full PostHog pricing →

PostHog FAQ

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