Fathom Analytics vs PostHog
Fathom Analytics and PostHog are both analytics options. Here's how they compare on official platforms, features, and positioning — sourced from each vendor's own site, not from ratings or reviews.
Side-by-side summary
Best for Fathom Analytics
Developers and technical teams seeking straightforward analytics, privacy-conscious businesses and creators, and companies wanting faster site performance, including customers like IBM, GitHub, and Bootstrap.
Best for PostHog
Product teams and developers at companies of any size wanting analytics, experimentation, and data infrastructure in one platform, with SDKs for Next.js, React, Python, and 20+ other frameworks/languages.
Feature comparison
Every feature listed here comes directly from each vendor's own official site.
Fathom Analytics
- Event tracking for custom interactions like sign-ups, clicks, and ecommerce transactions
- Real-time dashboard powered by a lightweight, 2kB script
- Automated email reports on a weekly or monthly cadence
- UTM-based campaign and newsletter performance tracking
- Perpetual data retention with unlimited historical access
- Bot detection to filter spam and scraper traffic
- Developer-friendly API integrating with any CMS or framework, with no cookie consent banners required
PostHog
- Product analytics and web analytics
- Session replay and heatmaps
- Feature flags and no-code A/B testing experiments
- Surveys for in-product feedback collection
- Error tracking and AI observability (traces and logs)
- Customer data platform (CDP) for routing event data to other tools
- Managed data warehouse for querying product data
Pros and cons
Fathom Analytics
- Event tracking for custom interactions like sign-ups, clicks, and ecommerce transactions
- Real-time dashboard powered by a lightweight, 2kB script
- Automated email reports on a weekly or monthly cadence
- UTM-based campaign and newsletter performance tracking
- Perpetual data retention with unlimited historical access
- Bot detection to filter spam and scraper traffic
- Developer-friendly API integrating with any CMS or framework, with no cookie consent banners required
We don't publish a "cons" list for either product. No vendor's official site documents its own product's weaknesses, so there's no sourced basis for one — and we'd rather say that plainly than invent one.
PostHog
- Product analytics and web analytics
- Session replay and heatmaps
- Feature flags and no-code A/B testing experiments
- Surveys for in-product feedback collection
- Error tracking and AI observability (traces and logs)
- Customer data platform (CDP) for routing event data to other tools
- Managed data warehouse for querying product data
We don't publish a "cons" list for either product. No vendor's official site documents its own product's weaknesses, so there's no sourced basis for one — and we'd rather say that plainly than invent one.
Key differences
- Fathom Analytics lists Event tracking for custom interactions like sign-ups, clicks, and ecommerce transactions, Real-time dashboard powered by a lightweight, 2kB script, Automated email reports on a weekly or monthly cadence, UTM-based campaign and newsletter performance tracking, Perpetual data retention with unlimited historical access, Bot detection to filter spam and scraper traffic, Developer-friendly API integrating with any CMS or framework, with no cookie consent banners required that PostHog doesn't list.
- PostHog lists Product analytics and web analytics, Session replay and heatmaps, Feature flags and no-code A/B testing experiments, Surveys for in-product feedback collection, Error tracking and AI observability (traces and logs), Customer data platform (CDP) for routing event data to other tools, Managed data warehouse for querying product data that Fathom Analytics doesn't list.
Choose Fathom Analytics if…
Choose Fathom Analytics if this fits: Developers and technical teams seeking straightforward analytics, privacy-conscious businesses and creators, and companies wanting faster site performance, including customers like IBM, GitHub, and Bootstrap.
Choose PostHog if…
Choose PostHog if this fits: Product teams and developers at companies of any size wanting analytics, experimentation, and data infrastructure in one platform, with SDKs for Next.js, React, Python, and 20+ other frameworks/languages.
Facts on this page are sourced from each vendor's official site (linked below), not from ratings or reviews. Products change — verify anything that matters to your decision directly on the vendor's own site before switching. See our Disclaimer and Sources Policy.
Keep exploring
Related software
Productivity
Notion
Notion combines documents, databases, project tracking, and team knowledge in one flexible workspace.
Communication
Slack
Slack is a workplace communication platform built around channels, direct messages, integrations, and searchable conversations.
Project Management
ClickUp
ClickUp is a project-management platform that combines tasks, documents, dashboards, goals, and automation.
Keep exploring
Related comparisons
Comparing something else?
Search any software by name to see its alternatives.