Google Analytics 4 vs PostHog: Which is better in 2026?
A side-by-side comparison of pricing, features, and use cases to help you decide between Google Analytics 4 and PostHog.
Google Analytics 4
Free web and app analytics by Google
From Free/mo
Free plan available
PostHog
All-in-one product analytics, open source
From Free/mo
Free plan available
Head-to-head comparison
| Feature | Google Analytics 4 | PostHog |
|---|---|---|
| Starting price | Free/mo | Free/mo |
| Free plan | ✓ Yes | ✓ Yes |
| Pricing model | freemium | freemium |
| G2 rating | 4.5/5 ↑ | 4.4/5 |
| Capterra rating | 4.7/5 | 4.5/5 |
| Founded | 2005 | 2020 |
Google Analytics 4: pros & cons
Pros
- ✓Free for most use cases
- ✓Integrates with Google ecosystem
- ✓Industry standard
- ✓BigQuery export on free tier
Cons
- ✗GA4 migration was painful
- ✗Privacy concerns (GDPR)
- ✗Sampled data on free tier at scale
- ✗Less user-friendly than Mixpanel
PostHog: pros & cons
Pros
- ✓Open source with self-hosted option
- ✓All-in-one platform
- ✓Very generous free tier
- ✓Developer-friendly
Cons
- ✗Less polished UI than Amplitude/Mixpanel
- ✗Self-hosting requires technical expertise
- ✗Usage-based pricing can surprise