What is PostHog and what is it used for?

PostHog is an open-source product analytics platform that helps teams track, analyze, and understand user behavior across websites and applications. It allows businesses to capture events, analyze user journeys, and measure feature usage so they can make informed, data-driven product decisions without relying solely on third-party analytics tools.

How is PostHog different from traditional analytics tools?

Unlike many traditional analytics platforms, PostHog offers full control over data, including the option to self-host. It combines product analytics, feature flags, session recordings, and A/B testing in one platform, reducing the need for multiple tools and giving teams a more complete view of user behavior.

Can PostHog be self-hosted and how does that benefit teams?

Yes, PostHog can be self-hosted, which is a major advantage for teams with strict data privacy or security requirements. Self-hosting allows organizations to store and manage their data on their own infrastructure, maintain full ownership, and meet internal or regulatory compliance standards.

What insights can teams gain from using PostHog?

PostHog helps teams identify user behavior trends, feature adoption rates, funnel drop-offs, and retention patterns. With tools like event-based analytics and session recordings, teams can understand how users interact with specific features and where improvements are needed to enhance engagement and conversion.

Who is PostHog best suited for?

PostHog is well-suited for product-led teams, startups, and engineering-focused organizations that want flexibility and transparency in their analytics stack. It is especially valuable for teams that prefer open-source tools and need advanced product analytics without vendor lock-in.

Reviewed · Updated 2026-06-19

PostHog

An open-source product analytics platform that combines user behavior tracking, feature flags, and session recordings in one solution.

Reviewed by the Conversion Gems editorial team · 2026-06-19

Try PostHog

Pricing

Free

Best for

Developers

Community ratings

4.5/ 5 aggregate · across 1 source

4.51,000+ reviews

Third-party ratings shown verbatim; aggregate weighted by review volume.

What it really is

PostHog — open-source product analytics suite with session replay, feature flags, A/B testing, and more.

Our take

PostHog is a comprehensive, developer-first product analytics platform with a genuinely generous free tier (1M events/mo) and usage-based paid pricing — not simply 'Open Source' as the DB labels it. The DB also miscategorises it as 'SEO'; it belongs squarely in Product Analytics / Developer Tools. Self-hosting is available via the OSS build, but the hosted Cloud product is what most teams use, with 90%+ of companies staying on the free tier.

Why we rate it

Rare combination of open-source transparency, a cloud product with a permanently generous free tier, and a breadth of features that would cost thousands per month if assembled from Mixpanel + LaunchDarkly + FullStory separately.

The catch

Self-hosting requires real DevOps capacity. Usage-based cloud costs can surprise teams once they cross the free-tier thresholds at scale. Some features (mobile replay, advanced warehouse sync) are less mature than dedicated point solutions.

Best for

Startups and scale-ups wanting all-in-one analytics without per-seat fees

Engineering-led teams who want to self-host for data sovereignty or compliance

Product teams replacing a fragmented Mixpanel + LaunchDarkly + FullStory stack

Not good for

Non-technical marketing teams expecting a no-code analytics setup

Very large enterprises needing certified on-prem support out of the box

Teams that only need lightweight page-view analytics and nothing more

Friction report

Time to value

Fast: PostHog's autocapture SDK starts recording events with a single script tag; first funnel or replay visible within minutes of install.

Scale breakpoint

Usage-based billing can escalate quickly past ~5M events/mo; self-hosted ops complexity grows significantly beyond a single-server deployment.

Walled garden

Low: MIT-licensed OSS core, full data export, warehouse sync, and self-hosting mean you are never locked into PostHog's cloud.

A look inside

Frequently Asked Questions

Alternatives

Step up

PostHog Scale ($750/mo) or Enterprise ($2,000/mo) for SSO, priority support, and compliance controls.

Lighter alternative

Plausible Analytics for simple, privacy-first page-view analytics without the full product analytics stack.

Ready to try PostHog?

Opens the official site — we may earn a commission if you sign up.