PostHog vs Google Analytics 4
Side-by-side from the Top 11 rankings of The 11 Best Session Replay Tools and The 11 Best CRO Tools for Higher Conversions. Last verified June 12, 2026.
The short answer
PostHog ranks higher on Top 11 (#7 vs #10) for Teams watching real user sessions and heatmaps / Growth and product teams improving website conversion rates. Best open-source platform with replay, analytics, and feature flags.
At a glance
| PostHog | Google Analytics 4 | |
|---|---|---|
| Top 11 rank | #7 / The 11 Best Session Replay Tools | #10 / The 11 Best CRO Tools for Higher Conversions |
| Score (out of 9.4) | 8 | 7.4 |
| Best for | Open-source analytics suite | Free, integrated A/B testing |
| Pricing | $$ (Usage-based) | Free |
| HQ | San Francisco, USA | Mountain View, USA |
| Founded | 2020 | 2005 |
Google Analytics 4
A free and powerful entry point for teams already using Google's ecosystem.
marketingplatform.google.com/about/analytics/See full entry in The 11 Best CRO Tools for Higher Conversions
Methodology and scoring weights live at /methodology. No vendor pays for placement — see about.