Privacy policy for Sum Tass Sum.

Sum Tass Sum is a written addition practice app for children and families. This page explains how the initial release handles data.

Last updated: June 1, 2026

Information stored on the device

In the initial release, Sum Tass Sum stores profiles, avatar choices, app settings, progress data, study sessions, answers, and review records locally on the device using local app storage.

No account or server sync

The initial release does not require account registration and does not send app-entered study data or profile data to Keetane Lab servers.

No advertising, purchases, or third-party analytics in the initial release

The initial release does not display third-party advertising, does not enable in-app purchases, does not collect personal data for third-party analytics, and does not track users. If these features are enabled in a future release, this policy will be updated before or with that release.

Crash information

Keetane Lab may review crash information made available through Apple's standard developer tools, such as App Store Connect or TestFlight. The app does not include a separate third-party behavior analytics service in the initial release.

Deletion

Deleting the app removes local app data from the device. If the device is backed up by the operating system, backup behavior is controlled by the device and Apple account settings.

Contact

Questions about privacy can be sent to nobodyknowsxx@gmail.com. Product support is available on the Sum Tass Sum support page.