PostHog is an open-source product analytics suite combining session replay, feature flags, A/B testing, and product analytics. Can be self-hosted for full data control.
All-in-one: analytics, session replay, feature flags, A/B testing, surveys in one platform.
Installation simple. Self-hosted setup requires DevOps. Cloud is zero-config.
API-first. Excellent GitHub, Sentry, Slack integrations. Data warehouse sync.
1M events/mo free forever. Most generous free tier in analytics. Self-host is fully free.
LLM observability features added. Core AI not as deep as Mixpanel Spark.
Open source with massive GitHub community. Public roadmap, transparent team.
Scales to billions of events. Enterprise with SSO, SLA, and dedicated support.