What is the difference between Google Analytics and PostHog?

Google Analytics is best for Businesses that need comprehensive, free web analytics, while PostHog is best for Product teams that need analytics, session replay, and feature flags in one tool. Google Analytics starts at Free and PostHog starts at Free.

Is Google Analytics or PostHog cheaper?

Google Analytics starts at Free and is free. PostHog starts at Free and is free.

Is there a free alternative to PostHog?

Both Google Analytics and PostHog offer free tiers.

Google Analytics vs PostHog

Google Analytics is free web analytics platform for tracking website traffic, user behavior, and conversions, while PostHog is open-source product analytics suite with session replay, feature flags, A/B testing, and surveys. PostHog is open source and can be self-hosted, giving you full control over your data. Google Analytics is built for businesses that need comprehensive, free web analytics, whereas PostHog targets product teams that need analytics, session replay, and feature flags in one tool.

At a glance

	Google Analytics	PostHog
Best for	Businesses that need comprehensive, free web analytics	Product teams that need analytics, session replay, and feature flags in one tool
Starting price	Free	Free
Free tier	✓	✓
Open source	—	✓
Free tier available	✓	✓
Open source	—	✓
A/B Testing	—	✓
Audiences	✓	—
Conversions	✓	—
Custom Reports	✓	—
Event Tracking	✓	—
Feature Flags	—	✓
Google Ads Link	✓	—
Product Analytics	—	✓
Session Replay	—	✓
Surveys	—	✓

Google Analytics

Strengths

Free for most use cases
Deep integration with Google Ads and Search Console
Comprehensive event tracking
Large community and learning resources

Weaknesses

GA4 interface is confusing and frustrating
Privacy concerns — sends data to Google
GDPR compliance requires cookie consent banners
Complex setup for accurate tracking

Try Google Analytics → Full review

PostHog

Strengths

All-in-one: analytics, session replay, feature flags, A/B tests
Generous free tier (1M events/mo)
Open source and self-hostable
Strong developer experience

Weaknesses

Can be overwhelming — lots of features
Self-hosting requires significant infrastructure
UI has a learning curve
Some features less mature than best-in-class alternatives

Try PostHog → Full review

The bottom line

Pricing: Both Google Analytics and PostHog are free, so this decision comes down to features and philosophy rather than budget.

Feature gaps: Google Analytics offers Audiences, Conversions and Custom Reports that PostHog lacks. PostHog brings A/B Testing, Feature Flags and Product Analytics that Google Analytics does not have.

Team fit: Both tools target any size teams, so the decision hinges on features and workflow fit rather than scale.

Open source: PostHog is open source, meaning you can self-host, audit the code, and avoid vendor lock-in. Google Analytics is proprietary — you are trusting the vendor with your data and uptime.

Where each tool shines: Google Analytics's biggest strengths are: free for most use cases. deep integration with google ads and search console. PostHog's biggest strengths are: all-in-one: analytics, session replay, feature flags, a/b tests. generous free tier (1m events/mo).

Watch out for: With Google Analytics, users commonly note that ga4 interface is confusing and frustrating. With PostHog, the main complaint is that can be overwhelming — lots of features.

Choose Google Analytics if...

Your profile matches its sweet spot: businesses that need comprehensive, free web analytics
You specifically need Audiences and Conversions
You care about deep integration with google ads and search console

Choose PostHog if...

You need a tool built for product teams that need analytics, session replay, and feature flags in one tool
You need self-hosting, data sovereignty, or the ability to audit source code
You specifically need A/B Testing and Feature Flags
You care about generous free tier (1m events/mo)