Privacy Policy
Brain vs Math ("we", "the site") is designed to work without collecting personal information. This page explains exactly what is and isn't stored when you use the site.
What we store (on your device only)
The site uses your browser's local storage to remember game progress: daily puzzle results, streaks, best scores, worksheet options and your theme preference. This data never leaves your device, is not transmitted to us, and is deleted if you clear your browser data. There are no accounts, sign-ups or profiles.
What we don't collect
- No names, email addresses or contact details.
- No location data.
- No behavioral profiles built by us.
Analytics
If enabled, we use privacy-focused, cookieless analytics (Cloudflare Web Analytics) to count page views in aggregate. It does not use cookies, does not fingerprint devices and cannot identify individual visitors.
Advertising
The site may display advertising (such as Google AdSense) to keep everything free. Ad providers may use cookies or similar technologies to serve and measure ads; where required, you will be shown a consent prompt before any such cookies are set. You can learn how Google uses advertising data and opt out of personalized ads at policies.google.com/technologies/ads and adssettings.google.com. If advertising is not currently visible on the site, no advertising cookies are in use.
Children
The site is suitable for general audiences, including students. Because we collect no personal information, there is nothing for a child (or anyone) to submit.
Changes
If our practices change (for example, when advertising goes live), this page will be updated first, with a new effective date.
Contact
Questions about privacy? Open an issue on GitHub.