Fathom vs PostHog — Which One Wins?
A detailed, side-by-side comparison of Fathom and PostHog to help you pick the right tool for your workflow.
Quick Verdict
Fathom takes the lead with a 4.4 rating and is best for businesses wanting the most polished privacy-friendly analytics with premium support.. PostHog (3.8) is the better pick if you need product teams wanting all-in-one open-source analytics.
Side-by-Side Comparison
| Criteria | Fathom | PostHog |
|---|---|---|
| Rating | ★★★★ 4.4(89) | ★★★★ 3.8(38) |
| Pricing Model | paid | open_source |
| Starter Price | $15/mo (100K pageviews) | Free 1M events |
| Free Tier | Yes | No |
| Platforms | web | Web |
| Learning Curve | easy | moderate |
| API Available | Yes | Yes |
| Best For | Businesses wanting the most polished privacy-friendly analytics with premium support. | Product teams wanting all-in-one open-source analytics |
| Verdict | situational | recommended |
Feature Checklist
| Feature | Fathom | PostHog |
|---|---|---|
| Cookie-free analytics | — | |
| Beautiful single-page dashboard | — | |
| EU data isolation | — | |
| Custom events and goals | — | |
| UTM campaign tracking | — | |
| Multi-domain support | — | |
| Analytics | — | |
| Session replay | — | |
| Feature flags | — | |
| A/B testing | — | |
| Surveys | — | |
| Self-hosting | — |
Fathom
Pros
- ✓Most polished privacy-friendly analytics dashboard
- ✓EU data isolation for GDPR compliance
- ✓Accurate visitor counting without cookies
Cons
- ✕More expensive than Plausible for similar features
- ✕No free tier or self-hosting option
- ✕Less capable than GA4 for marketing analytics
PostHog
Pros
- ✓All-in-one
- ✓Generous free
- ✓Open-source
- ✓Active dev
Cons
- ✕Marketing weaker
- ✕Self-hosting complex
- ✕Resource-intensive
The Bottom Line
Both Fathom and PostHog are solid tools in the Analytics & Data space. Fathom edges ahead with a stronger overall rating (4.4 vs 3.8) and is the better choice for businesses wanting the most polished privacy-friendly analytics with premium support.. However, if you prioritize product teams wanting all-in-one open-source analytics, PostHog is worth serious consideration. We recommend trying the free tier or trial of each before committing.