Free foreverVerified 2026-07-21
PostHog review
Open-source product analytics with heatmaps, session replay and a generous free tier.
Our verdict: The developer/SaaS pick: heatmaps and replay ride along with real product analytics, feature flags and A/B testing in one open-source stack — overkill for a brochure site, ideal for a product team.
Price
Free — 5,000 recordings + 1M events/mo
Paid from Usage-based
Heatmaps
3 types
Click, Scroll, Move
Script
Not measured
GDPR compliant
The good
- Genuinely generous free tier (1M events + 5k replays/mo)
- Open source and self-hostable — full data control
- Analytics, flags, surveys and A/B testing in one platform
The catch
- Developer-oriented — steeper than a pure heatmap tool
- Heavier script than the lean heatmap-only tools
- Usage-based billing is harder to predict at scale
Pick it if
Product and engineering teams who want heatmaps next to analytics, flags and experiments — with the option to self-host.
Skip it if
Non-technical marketers who just want a visual heatmap — the surface area is large and developer-shaped.
Full specification
- Free tier
- 5,000 recordings + 1M events/mo (forever)
- Paid from
- Usage-based
- Pricing notes
- Free forever up to 1M events and 5,000 session replays/mo, then pay-as-you-go per event/recording — no fixed monthly plan. Self-hostable (open source).
- Heatmap types
- Click, Scroll, Move
- Session recordings
- Yes
- Surveys
- Yes
- Funnels
- Yes
- Form analytics
- No
- A/B testing
- Yes
- AI insights
- No
- Script size
- Not independently measured — we don't publish a figure we haven't checked
- GDPR compliant
- Yes
- EU data residency
- Yes
- Integrations
- GA4, Segment, Zapier, Slack, Sentry
Sources · verified 2026-07-21