Google Analytics 4 vs PostHog
Google Analytics 4 (web analytics) and PostHog (product analytics) are often weighed up together even though they take different approaches to analytics. Google Analytics 4 is best known for real-time reporting and suits e-commerce, content, saas teams, while PostHog stands out for event tracking and is a strong fit for startups, saas, developer teams. Below we break down pricing, features, pros and cons so you can decide quickly.
Quick verdict
If budget is the priority, Google Analytics 4 is the more accessible option (Always free). For overall user satisfaction, Google Analytics 4 edges ahead with a 4.3/5 rating. Most teams should pick Google Analytics 4 for e-commerce use cases and PostHog for startups use cases — and many growing companies end up running both together.
| Feature | Google Analytics 4 | PostHog |
|---|---|---|
| Pricing model | Free | Freemium |
| Price range | Always free | $0-$450/mo |
| Free tier | Yes | Yes |
| Category | Web Analytics | Product Analytics |
| Best for | E-commerce, Content, SaaS | Startups, SaaS, Developer Teams |
| Key features |
|
|
| User rating | ★ 4.3 (12,500) | ★ 4.2 (850) |
Choose Google Analytics 4 if…
- ✓You're focused on e-commerce, content, saas
- ✓Completely free with generous limits
- ✓Deep integration with Google Ads & Search
- ✓Huge ecosystem and community support
- ✓You want to start on a free plan
Choose PostHog if…
- ✓You're focused on startups, saas, developer teams
- ✓All-in-one product OS (analytics, flags, replays)
- ✓Open source & self-hostable
- ✓Developer-first with generous free tier
- ✓You want to start on a free plan
Google Analytics 4 vs PostHog: pros & cons
Google Analytics 4
Pros
- ✓Completely free with generous limits
- ✓Deep integration with Google Ads & Search
- ✓Huge ecosystem and community support
Cons
- ✕Steep learning curve in GA4
- ✕Data sampling on large datasets
- ✕Privacy/consent overhead in the EU
PostHog
Pros
- ✓All-in-one product OS (analytics, flags, replays)
- ✓Open source & self-hostable
- ✓Developer-first with generous free tier
Cons
- ✕Self-hosting requires infra
- ✕UI breadth can overwhelm
- ✕Younger ecosystem than rivals
Frequently asked questions
Is Google Analytics 4 or PostHog cheaper?
Google Analytics 4 is generally the more affordable option (Always free). Google Analytics 4 is priced at Always free and PostHog at $0-$450/mo, so the best value depends on your data volume and which features you need.
Is Google Analytics 4 free?
Yes, Google Analytics 4 offers a free tier (Always free), which is great for getting started before you scale up.
Is PostHog free?
Yes, PostHog offers a free tier ($0-$450/mo), so you can trial it without commitment.
Can I use Google Analytics 4 and PostHog together?
Yes. Many teams run Google Analytics 4 and PostHog side by side — Google Analytics 4 for e-commerce and PostHog for startups. A customer data platform (like Segment or RudderStack) makes it easy to send the same events to both.
Which is better for e-commerce, Google Analytics 4 or PostHog?
For e-commerce, Google Analytics 4 is typically the stronger choice thanks to real-time reporting and enhanced ecommerce tracking. PostHog is the better pick when you need event tracking.