Fathom Analytics vs PostHog
Fathom Analytics and PostHog are both web & product analytics tools. Fathom Analytics is a privacy-first web analytics tool that shows website traffic and conversions without cookies for site owners and businesses. PostHog is a product analytics platform that combines analytics, session replay, feature flags, error tracking and a data warehouse for software teams.
| Fathom Analytics | PostHog | |
|---|---|---|
| Best for | Site owners and agencies who want simple traffic stats without cookie banners. | Product and engineering teams that want analytics and product tools in one place. |
| Category | Web & product analytics | Web & product analytics |
| Pricing model | Paid | Free plan + paid plans |
| Free plan | No | Yes |
| Lowest paid plan | $15/mo | Usage-based |
| Open source | No | Yes |
| Checked | Oct 2026 | Oct 2026 |
| Website | usefathom.com | posthog.com |
Key differences
- PostHog has a free plan; Fathom Analytics does not.
- PostHog is open source and can be self-hosted; Fathom Analytics is not.
- Lowest listed paid plan: PostHog Usage-based, Fathom Analytics $15/mo.
Fathom Analytics
Fathom Analytics is a privacy-first web analytics tool that shows website traffic and conversions without cookies for site owners and businesses.
As of Oct 2026, Fathom Analytics has no free plan and paid plans start at $15/mo (source: usefathom.com).
Top Fathom Analytics features
- No cookie banners. No cookies and no personal data stored, so no consent banner is needed for analytics.
- EU data routing. EU visitor traffic is processed on European infrastructure automatically.
- Bot filtering. Filters out bots and crawlers so the dashboard shows human visits in real time.
- Events and revenue. Track signups and purchases as events, with optional monetary values.
Fathom Analytics plans
Fathom Analytics overview · Fathom Analytics pricing · Fathom Analytics alternatives
PostHog
PostHog is a product analytics platform that combines analytics, session replay, feature flags, error tracking and a data warehouse for software teams.
As of Oct 2026, PostHog has a free plan and paid plans start at Usage-based (source: posthog.com).
Top PostHog features
- Product analytics. Track events and user behaviour; the first 1M events each month are free.
- Session replay. Watch recordings of user sessions; 5K recordings free each month.
- Feature flags and experiments. Roll out features gradually and run A/B tests; 1M flag requests free monthly.
- Error tracking. Group exceptions and stack traces into issues; 100K exceptions free monthly.
PostHog plans
Fathom Analytics vs PostHog: FAQ
What is the difference between Fathom Analytics and PostHog?
PostHog has a free plan; Fathom Analytics does not. PostHog is open source and can be self-hosted; Fathom Analytics is not. Lowest listed paid plan: PostHog Usage-based, Fathom Analytics $15/mo.
Is Fathom Analytics or PostHog free?
Fathom Analytics: free plan no. PostHog: free plan yes. Check each site for current limits.
Who should choose Fathom Analytics?
Site owners and agencies who want simple traffic stats without cookie banners.
Who should choose PostHog?
Product and engineering teams that want analytics and product tools in one place.
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