Privacy Policy

Last updated: 2026-10-31

Brain Challenge is a free browser puzzle game. This page explains what information is and is not collected when you play.

What we do not collect

• No account, email address or password is required to play.
• We do not ask for your name, address or phone number.
• We do not sell or rent personal data.

Data stored in your browser

The game saves your progress (current level, number of puzzles solved, best streak) in your browser's localStorage. This data stays on your device, is not transmitted to us, and is removed when you clear your browser's site data. The “Backup” and “Restore” buttons let you copy that progress out as text and paste it back in.

Cookies and advertising

This site may display advertising served by Google AdSense. Google and its partners may use cookies to serve ads based on your prior visits to this and other websites. You can opt out of personalised advertising by visiting Google Ads Settings, or opt out of third-party vendor cookies at aboutads.info.

Third-party vendors, including Google, use cookies to serve ads based on a user's prior visits. Google's use of advertising cookies enables it and its partners to serve ads based on visits to this site and/or other sites on the Internet.

Analytics

We may use a privacy-friendly analytics service to count page views and understand which puzzle types are popular. Such services record aggregated data (page, referrer, country) and do not identify individual visitors.

Children

The site is suitable for general audiences and does not knowingly collect personal information from children under 13.

Changes

If this policy changes, the updated date at the top of this page will change as well.

Contact

Questions about this policy: qqqqq413954195@gmail.com