Product A
Fathom Analytics
by Conva Ventures Inc.
Simple, privacy-first analytics trusted by 100,000+ websites — GDPR ready out of the box.
$15mo
Visit Fathom Analytics →Product B
PostHog
by PostHog Inc.
Open-source product analytics with feature flags, session replay, and A/B tests — self-hostable.
Free tier
Visit PostHog →Side-by-Side Comparison
| Feature | Fathom Analytics | PostHog |
|---|---|---|
| Price | $15mo | FreeBetter |
| Free Tier | No | Yes |
| Top Pros | Zero personal data collection — GDPR, CCPA, PECR compliant | All-in-one: analytics + feature flags + session replay + A/B |
| Bypass most ad blockers (custom domain option) | Open-source and self-hostable | |
| Excellent uptime and performance | Most generous free tier in the category (1M events) | |
| Top Cons | No free tier — 30-day trial only | UI less polished than Amplitude or Mixpanel |
| Limited to web analytics — no product analytics depth | Self-hosting requires infrastructure management |
Choose Fathom Analytics if you…
- Want: zero personal data collection — gdpr, ccpa, pecr compliant
- Want: bypass most ad blockers (custom domain option)
- Want: excellent uptime and performance
Choose PostHog if you…
- Want: all-in-one: analytics + feature flags + session replay + a/b
- Want: open-source and self-hostable
- Want: most generous free tier in the category (1m events)