Terms of Service

Last updated: October 2026

The basics

Fathom is an educational quiz game. By using it, you agree to these terms.

Your account

You can play for free without an account
Creating an account lets you sync progress across devices
You're responsible for keeping your login credentials secure
You must be 13 or older to create an account

Free and premium

All quiz content is free for everyone
Premium removes ads in the apps. All content and features remain free
On the website, Premium is paid through Stripe; in the apps, through the App Store or Google Play, where you also manage and cancel it
You can cancel anytime; access continues until the billing period ends

Acceptable use

Don't:

Attempt to manipulate scores
Scrape or redistribute content
Interfere with the service or other users' experience
Create multiple accounts to abuse free tier limits

Content

Geographic data is sourced from public domain datasets. The Fathom application (code, design, and UI) is proprietary. Quiz questions are based on factual data from public domain sources.

See the attribution page for details.

Disclaimer

Fathom is an educational tool. While we strive for accuracy, geographic and historical content may contain errors. Borders shown are for quiz purposes and don't represent political positions.

Changes

We may update these terms. Continued use after changes means you accept the new terms.