Privacy Policy

Chalk Math · Effective October 23, 2026

Chalk Math does not collect, store, or share any personal information. This policy explains what that means in practice.

Information we collect

None. Chalk Math has no accounts, no sign-up, no advertising, and no analytics or tracking of any kind. The app does not connect to any server operated by us or by third parties.

Your handwriting

When you write an answer, the digits are recognised by a machine-learning model that runs entirely on your device. Your handwriting is never saved, uploaded, or sent anywhere, and it is discarded as soon as the next question appears.

Progress

The stars you earn on each level are saved only on your device. They are not sent to us and are removed if you delete the app.

Purchases

The optional "Unlock All Levels" purchase is processed entirely by Apple through the App Store. We never receive your payment details, name, or Apple Account information. Apple's handling of purchase data is covered by Apple's Privacy Policy.

Children

Chalk Math is designed for children and families. Because the app collects no personal information from anyone, it collects none from children. Purchases are placed behind a grown-ups-only check so children can't buy on their own.

Changes to this policy

If this policy changes, the updated version will be posted on this page with a new effective date. If the app ever begins collecting data, this page will say exactly what and why before that version is released.

Contact

Questions about privacy? Email kxayasane@gmail.com.