PostHog
5.8/10$72/yr moreBest Google Analytics alternative for event-first SaaS migration
The event-first migration alternative shipping autocapture plus replay plus feature flags in one platform.
| Plan | Monthly | What you get |
|---|---|---|
| Free | Free | 1M events a month with 5,000 session recordings, funnels, cohorts, and feature flags; the most generous free tier in the category |
| Paid usage | $25.00/mo | Usage-based at $0.00031 per event past 1M plus session replay, A/B testing, surveys, and a data warehouse |
| Enterprise | Custom | SAML SSO, audit log, custom MSA, and a dedicated CSM for governance-bound teams |
PostHog is the right Google Analytics alternative when funnels, retention, session replay, and feature flags matter more than the GA report library. The wedge against GA4 is depth: PostHog autocaptures every click, form submission, and pageview, then surfaces funnels and retention cohorts that GA4 does not provide natively. The wedge against Mixpanel is breadth (everything in one product) plus the open-source escape hatch for teams ruling out US-hosted enterprise SaaS.
Free tier covers one million monthly events plus five thousand session recordings, the most generous free tier in the product analytics lane. Paid usage starts at fractions of a cent per event after the free tier ticks plus a small per-recording fee, so a SaaS clearing five million monthly events pays roughly twenty-five dollars monthly. Enterprise is custom-quoted with SAML SSO and audit log.
The trade-off is the heavyweight surface for sites that just need pageview reports, and self-host operations cost engineering time on Kubernetes. PostHog runs the cloud and ships the official Helm chart for self-host; SOC 2 Type II audited. For event-first SaaS migration from GA4: PostHog wins. For GA-depth pageview reports: Matomo. For privacy-first cookie-free: Plausible.
Pros
- Autocapture every click + form + pageview without manual tagging
- Session replay + feature flags + A/B testing native
- Free 1M events monthly is the most generous in the lane
- Open-source MIT with self-host on Kubernetes via Helm
- PostHog AI for natural-language data exploration
Cons
- Heavyweight surface for sites that just need pageview reports
- Self-host operations cost engineering time on Kubernetes at scale
Best for: SaaS product teams migrating from GA4 because event-first funnels matter, plus engineering-led teams wanting open-source self-host control.
- Privacy posture
- 7
- Analysis depth
- 8
- Dashboard UX
- 7
- Value
- 9
- Support
- 8