Terms of use

Last updated: 11 October 2026. Operator: Harry Barker, trading as Circuit Sprint Studios.

The game

Circuit Sprint is a free puzzle game for personal use. The current game has no accounts, online competitions, advertising, purchases, subscriptions or cash prizes. It can be played without an internet connection.

Your progress and backups

Progress and preferences are stored on your device. Clearing app data or uninstalling removes them. Export a backup from Settings before moving devices or changing installations. Import replaces current progress only after confirmation. Exported files are your responsibility to keep; we cannot recover a lost local save.

Stars and rewards

Stars are earned through play and spent on in-game hints and cosmetic rewards. They have no cash value, cannot be redeemed for money and are not transferable between players. Local progress, rewards and balancing may change with updates.

Daily puzzles and sharing

Daily circuits use your device’s clock and the GMT date. There is no online leaderboard or server verification. Sharing a result is optional and uses an app or service you select, whose terms apply to that service.

Code, artwork and licences

Respect the rights of the game’s creators and third-party contributors. Third-party library licences and notices are listed on the Open-source licences page. These terms do not remove rights those licences give you or rights provided by law.

Updates, problems and your rights

The game may contain errors and may be changed or discontinued. Nothing in these terms excludes liability that cannot lawfully be excluded, or limits your applicable consumer rights. These terms do not require you to waive statutory rights or agree to a separate dispute forum.

Contact and privacy

For help, email circuitsprintstudios@gmail.com. Our privacy policy explains local storage, optional sharing and how support messages are handled. Children should ask a parent or guardian before sending personal information to support.