PostHog
Open-source product analytics suite combining event tracking, session replay, feature flags, and A/B testing in a single platform.
PostHog is an open-source product analytics platform that bundles event analytics, session recording, feature flags, A/B testing, and surveys into a single product. It can be self-hosted or used as a cloud service.
Key Features
Event-based analytics, session replay, feature flags and experiments, user surveys, a data warehouse for SQL queries, and an open-source codebase. PostHog also offers a generous free tier (1M events/month) and transparent pricing.
Best For
Engineering-led teams that want a single platform for analytics and experimentation. Companies with data privacy requirements that need self-hosting options. Startups that want to avoid vendor lock-in with an open-source solution.
Limitations
Individual features may not be as deep as best-of-breed alternatives (e.g., Amplitude for analytics, LaunchDarkly for feature flags). Self-hosting requires DevOps resources. The UI is functional but less polished than some competitors.
| Plan | Price | Details |
|---|---|---|
| Free | Free | 1M events/mo, 5K sessions, 1M feature flags |
| Pay-as-you-go | $0.00031/event | After free tier; volume discounts available |
| Enterprise | Custom | SSO, advanced permissions, dedicated support |
Used by
Y Combinator · Airbus · Phantom · Hasura · Vendasta · AssemblyAI · Contra
Use cases
- Consolidating analytics, feature flags, and experiments in one tool
- Self-hosting analytics for data privacy compliance
- Running feature flag-driven experiments with integrated analysis
- Recording and reviewing user sessions to debug UX issues
Alternatives
- Amplitude — Enterprise-grade product analytics platform built for understanding user behavior, retention, and feature adoption at scale. (Free)
- Mixpanel — Interactive product analytics platform focused on event tracking, funnels, and user journey analysis with a powerful query engine. (Free)