Fathom Analytics vs PostHog: Which is Better in 2026?
Choosing between Fathom Analytics and PostHog comes down to understanding what each tool does best. This comparison breaks down the key differences so you can make an informed decision based on your specific needs, not marketing claims.
Bottom line: PostHog wins this matchup. Google Analytics is our overall Web Analytics pick. Google Analytics is our free Web Analytics pick. Pick Fathom Analytics if you need web analytics.
Short on time? Here's the quick answer
Based on published vendor pricing and features and on public review data, here's who should pick what:
Fathom Analytics
Simple privacy-first analytics
Best for you if:
- • You want privacy compliant
PostHog
Open-source product analytics with event tracking, feature flags, and session recording
Best for you if:
- • You want a free tier before you commit
| At a Glance | Fathom Analytics | PostHog |
|---|---|---|
Starts at | $18/mo Team | Free Free plan |
Category | Web Analytics Analytics | Product Analytics Web Analytics |
Rating | 4.7/5 G2 4.7 21 reviews | 4.5/5 G2 4.5 1,054 reviews |
Free plan | No | Yes |
Watch out for | n/a | Overage fees for events beyond free tier |
Choose Fathom Analytics or PostHog?
Choose Fathom Analytics if
- You want privacy compliant
- You want fast loading
- You work in web analytics, not product analytics
Choose PostHog if
- You want a free tier before you commit
- You want open source
- You want all-in-one
- You work in product analytics, not web analytics
In-Depth Analysis
Fathom Analytics
Simple privacy-first analytics
Fathom Analytics' pricing structure appears somewhat expensive, especially for individual users.
Strengths
- Pro: Privacy compliant
- Pro: Fast loading
- Pro: Clean UI
Weaknesses
- Con: Limited features
- Con: No free tier
Key features
PostHog
Open-source product analytics with event tracking, feature flags, and session recording
PostHog's pricing is quite generous, especially with its robust free tier offering 1M events and unlimited seats.
Watch out
Overage fees for events beyond free tier
Strengths
- Pro: Open source
- Pro: All-in-one
- Pro: Self-hostable
Weaknesses
- Con: Complex setup
- Con: Can get expensive
Key features
Pricing: Fathom Analytics vs PostHog
| Plan | Fathom Analytics | PostHog |
|---|---|---|
| Tier 1 | $0 Free | Free Free |
| Tier 2 | $20/user Premium | Custom Usage-Based |
| Tier 3 | $18/user Team | $750 Scale |
| Tier 4 | $28/user Business | N/A |
Pricing verified from each vendor's public pricing page. Compare in detail on Fathom Analytics pricing and PostHog pricing.
Key Takeaways
PostHog
- Larger review base (1,054 reviews)
- Free tier available
- Our pick for this comparison
Fathom Analytics
- Higher user rating: 4.7/5 vs 4.5/5
- Better fit for web analytics
The Bottom Line
PostHog wins this matchup. Google Analytics is our overall Web Analytics pick. Google Analytics is our free Web Analytics pick.
Frequently Asked Questions
Is Fathom Analytics or PostHog better in 2026?
PostHog wins this matchup. Google Analytics is our overall Web Analytics pick. Google Analytics is our free Web Analytics pick. Pick Fathom Analytics for web analytics workflows (main strength: privacy compliant). Pick PostHog for product analytics workflows (main strength: open source).
What are Fathom Analytics and PostHog used for?
Fathom Analytics: Simple privacy-first analytics. PostHog: Open-source product analytics with event tracking, feature flags, and session recording.
What does Fathom Analytics cost vs PostHog?
Fathom Analytics's paid plans start at $18/mo (Team). PostHog's paid plans start at Free (Scale).
What's the main difference between Fathom Analytics and PostHog?
Fathom Analytics's main strength: privacy compliant. PostHog's main strength: open source.