Fathom AnalyticsAnalytics without the cookies.
vs
PostHogYour product's context layer.
Comparison · Web Analytics · weekly run Nov 2
Fathom Analytics vs PostHog
Which one do AI engines recommend, and how do they differ on price, fit and features?
The short answer
PostHog is the stronger AI pick in Web Analytics: it has a visibility score of 21 versus 14.6 for Fathom Analytics, and ranks ahead in 30% of the answers that name both.
Choose Fathom Analytics if…
- You need CCPA or ePrivacy or PECR coverage
- privacy-focused, cookie-free analytics
- simple dashboard and simple metrics
- fast and reliable
Choose PostHog if…
- You want the brand AI engines rank higher (21 vs 14.6)
- You want a free plan to start
- AI answers describe it more positively (57% vs 50% positive)
- You need a self-hosted or on-premises option
AI visibility side by side
Latest weekly run · Nov 2
| Metric | Fathom Analytics | PostHog |
|---|---|---|
| Visibility score | 14.6% | 21% |
| Change vs last week | New | New |
| Rank in Web Analytics | #8 | #7 |
| Share of voice | 4% | 6.1% |
| Mentions this run | 20 | 32 |
| Positive in AI answers | 50% | 57% |
The stronger value in each row is marked with a ✓.
Visibility score trend
Weekly runs over the last 60 days
Fathom Analytics 0pp · PostHog 0pp over 0 weekly runs.
Engine by engine
PostHog leads on 2 of 3 engines
ChatGPT
AI Mode
Perplexity
Fathom AnalyticsPostHog
Head to head in AI answers
10 engine answers name both brands
7Fathom Analytics ranked higher
3PostHog ranked higher
| Prompt | Engine | Fathom Analytics | PostHog |
|---|---|---|---|
| What are the best Web Analytics tools in 2026? | ChatGPT | #11 | #4 |
| Compare the leading Web Analytics platforms | Perplexity | #10 | #11 |
| Alternatives to the most popular web analytics tool | ChatGPT | #4 | #6 |
| Alternatives to the most popular web analytics tool | AI Mode | #5 | #6 |
| Alternatives to the most popular web analytics tool | Perplexity | #4 | #6 |
| Which Web Analytics vendors do analysts recommend? | Perplexity | #9 | #7 |
| Which web analytics tool has transparent pricing? | Perplexity | #2 | #6 |
| Which Web Analytics tools offer annual discounts? | ChatGPT | #2 | #7 |
| Which Web Analytics tools offer annual discounts? | AI Mode | #1 | #4 |
| Official website of the top web analytics tool vendors | ChatGPT | #12 | #7 |
Features, pricing & fit
| Dimension | Fathom Analytics | PostHog |
|---|---|---|
| Pricing model | Usage-based | Usage-based |
| Entry price | $15 / mo | Contact sales |
| Free plan | No · 7-day trial | Yes |
| Deployment | Hosted software-as-a-service | PostHog Cloud in US or EU regions, or self-hosted |
| Integrations | — | 926+ |
| Compliance | GDPR, CCPA, ePrivacy, PECR | SOC 2 Type 2, GDPR, HIPAA |
| Support | Email support, Help centre | Community support on the free plan, Email support on pay-as-you-go, Slack support for plans over $2k/mo, Paid onboarding call |
| Founded | 2018 | 2020 |
| Headquarters | Victoria, British Columbia, Canada | San Francisco, CA, United States |
| Employees | 1–10 | 201–500 |
| Funding | Bootstrapped | Series E |
| Best for | European companies and agencies that want website analytics without cookies or personal data collection. | Product engineers, product managers, growth engineers and founders who want analytics, session replay, flags and experiments in one platform. |
Plans side by side
Fathom Analytics
100,000 pageviews$15month
200,000 pageviews$25month
500,000 pageviews$45month
1,000,000 pageviews$60month
2,000,000 pageviews$100month
5,000,000 pageviews$140month
10,000,000 pageviews$200month
15,000,000 pageviews$290month
20,000,000 pageviews$380month
25,000,000 pageviews$470month
CustomCustommonth
Pros and cons
Themes from the AI answers that mention each brand
Fathom Analytics
- privacy-focused, cookie-free analytics
- simple dashboard and simple metrics
- fast and reliable
- predictable flat-rate pricing based on pageviews
- lightweight tool suited to small sites
PostHog
- Open-source, developer-first platform
- All-in-one bundle of analytics, session replay, feature flags and A/B testing
- Transparent, public pay-as-you-go pricing
- Generous free tier for small teams
- Strong adoption and best value for startups
- Pricing often requires sales-assisted quotes
Data collected ·ChatGPT, Perplexity, Google AI Mode·coverage 100%·next run
Cite as: SlateIndex, “Fathom Analytics vs PostHog”, https://slateindex.ai/compare/fathom-analytics-vs-posthog, data of Nov 2, 2026. Licence: CC BY 4.0.