Privacy Policy

Matheo for iPhone and iPad. Last updated: 31 October 2026.

The short version

Matheo does not collect, store on a server, share or sell any personal information. It does not need an account, and it does not connect to the internet.

What stays on your device

The expressions, graphs and projects you create are saved only on your device, in the app's own storage. They are included in your device backups (for example iCloud Backup) according to your iOS settings, which Apple manages. We cannot see them.

What we do not do

• No analytics or usage tracking.
• No advertising and no advertising identifiers.
• No third-party code libraries that collect data.
• No location, contacts, photos, camera or microphone access.

Sharing

If you choose to share a graph image or copy your expressions, the content goes only where you send it, using the standard iOS share sheet. Matheo itself sends nothing anywhere.

Children

Matheo collects no personal information from anyone, including children.

Changes

If this policy ever changes, the new version will be published on this page with a new date.

Contact

Marsic Solutions · replace with your support email (see Support)