Privacy Policy

Mental Math: Step by Step

Mental Math: Step by Step respects your privacy. The app is designed to work without an account, registration, advertising, or online services.

Data collection

Mental Math does not collect, transmit, sell, or share personal information. The app does not use advertising or tracking technologies.

Data stored on your device

Your progress, level results, personal bests, and practice history are stored locally on your device. This information is used only to make the app work and is never sent to the developer.

Third-party services

The app does not use third-party advertising, analytics, or other services that collect information about you.

Data retention and deletion

Because your progress is stored only on your device and not on any server, the developer does not have a copy of it.

Deleting the app removes its data from your device. Backups of your device that you make, such as iCloud Backup, may still contain it.

Children’s privacy

Mental Math is designed to be suitable for children. The app does not knowingly collect personal information from children or anyone else.

Changes to this policy

This Privacy Policy may be updated if the app’s features or data practices change. Any updated version will be published on this page.

Contact

For privacy questions, contact mental-math@deniskorneev.com.

Effective date: 7 October 2026