Fathom Analytics
PostHog
| Feature | Fathom Analytics | PostHog |
|---|---|---|
| Pricing | From $14/mo | Free / from $0/mo |
| Free Plan | ✗ No | ✓ Yes |
| Rating | 4.6 / 5 | 4.5 / 5 |
| Best For | privacy-conscious-businesses, bloggers, saas-companies, agencies | developers, startups, product-teams, privacy-conscious-companies |
| Founded | 2018 | 2020 |
| Privacy First Analytics | ✓ | ✗ |
| Event Tracking | ✓ | ✗ |
| Email Reports | ✓ | ✗ |
| Custom Domains | ✓ | ✗ |
| Api | ✓ | ✗ |
| Uptime Monitoring | ✓ | ✗ |
| Product Analytics | ✗ | ✓ |
| Session Replay | ✗ | ✓ |
| Feature Flags | ✗ | ✓ |
| Experiments | ✗ | ✓ |
| Surveys | ✗ | ✓ |
| Data Warehouse | ✗ | ✓ |
| Self Hosting | ✗ | ✓ |
✓ Fathom Analytics Pros
- No cookie banners needed
- Beautiful simple dashboard
- Fast loading (single script)
- EU-isolation for European data
✗ Fathom Analytics Cons
- No free plan
- Limited segmentation compared to GA4
- No e-commerce tracking
✓ PostHog Pros
- All-in-one analytics replacing multiple tools
- Generous free tier (1M events/month)
- Self-hostable for full data control
- Feature flags and experiments built-in
✗ PostHog Cons
- Can be complex to set up properly
- Self-hosting requires infrastructure maintenance
- Less polished UI than Amplitude
The Verdict
Fathom Analytics is built for privacy conscious businesses and bloggers, with a focus on privacy-first-analytics and event-tracking. PostHog targets developers and startups and leads with product-analytics and session-replay.
On pricing, PostHog is the clear winner for budget-conscious users — starting at $0/mo compared to $14/mo for Fathom Analytics. That $14/mo difference adds up quickly for growing teams.
PostHog has a free plan, which gives it a meaningful edge for individuals and small teams exploring their options. Fathom Analytics requires a paid subscription from day one.
Feature-wise, PostHog offers broader built-in capabilities (7 features vs 6), while Fathom Analytics takes a more focused approach — which can mean a simpler, faster onboarding experience.
This is a genuinely close comparison. If you can, sign up for both free trials (where available) and run a one-week test with your actual team tasks before deciding.