Google Analytics 4 vs PostHog(2026)
Google Analytics 4 is better for teams that need free. PostHog is the stronger choice if open source. Google Analytics 4 is free and PostHog is freemium (from $0 (usage-based after 1M events)).
Full feature breakdown, pricing details, and pros & cons below.
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Google Analytics 4
Google Analytics 4 is Google's free analytics platform with machine learning insights and cross-platform tracking.
Visit Google Analytics 4PostHog
PostHog is an open-source product analytics suite with funnels, feature flags, A/B testing, and session recording.
Starting at $0 (usage-based after 1M events)
Visit PostHogHow Do Google Analytics 4 and PostHog Compare on Features?
| Feature | Google Analytics 4 | PostHog |
|---|---|---|
| Pricing model | free | freemium |
| Starting price | Free | $0 (usage-based after 1M events) |
| Web and app tracking | ✓ | — |
| GA4 event model | ✓ | — |
| Funnel analysis | ✓ | — |
| Audience builder | ✓ | — |
| BigQuery export | ✓ | — |
| Google Ads integration | ✓ | — |
| Product analytics | — | ✓ |
| Session recording | — | ✓ |
| Feature flags | — | ✓ |
| A/B testing | — | ✓ |
| Surveys | — | ✓ |
| Data warehouse | — | ✓ |
Google Analytics 4 Pros and Cons vs PostHog
G
Google Analytics 4
+Free
+Deep Google Ads integration
+Powerful for SEO analysis
+Industry standard
−GDPR compliance concerns
−Complex interface
−GA4 migration was painful
−Data sampling at high volumes
P
PostHog
+Open source
+All-in-one product suite
+Generous free tier
+Self-hostable
−Can be complex to set up
−Self-hosting requires infra
−Large bundle size
Should You Use Google Analytics 4 or PostHog?
Choose Google Analytics 4 if…
- •Free
- •Deep Google Ads integration
- •Powerful for SEO analysis
Choose PostHog if…
- •Open source
- •All-in-one product suite
- •Generous free tier