All-in-one open-source product analytics, session replay, feature flags, and A/B testing.
Technical Overview & Architecture
PostHog is the open-source developer-centric product analytics platform built on ClickHouse. Unlike traditional analytics tools, PostHog combines event autocapture, session recording, feature flags, multivariate A/B testing, user surveys, and error tracking into a single unified SDK. It can be consumed via PostHog Cloud or self-hosted in private Kubernetes clusters for full data privacy.
Pricing Breakdown
Transparent tiers and feature allotments for engineering teams.
Free Tier
$0/mo
- 1,000,000 events/mo free
- 5,000 session recordings/mo
- Unlimited feature flags
- Community support
Most Popular
Paid / Usage
$0.000225/event
- Volume-discounted event pricing
- Group analytics (B2B companies)
- Data pipeline connectors
- Priority support
Enterprise
Custom
- Dedicated account manager
- HIPAA BAA compliance
- SAML SSO
- Custom retention limits
Compare PostHog Against Alternatives
See how PostHog stacks up against competitor tools across speed, APIs, and pricing.