Privacy Policy

Just Shikaku · Last updated: 14 August 2026

Just Shikaku does not collect any personal data. There is no account to create, nothing to log in to, and no analytics, tracking or advertising code in the app. Nothing is shared with third parties, because nothing leaves your device.

What the app stores

Your settings, statistics, best times, lesson progress and the puzzle you have in progress are saved on your device, in the app's own storage. They are never sent anywhere. Deleting the app deletes all of it.

Purchases

Just Shikaku offers one optional purchase that unlocks the rest of the app. The purchase is handled entirely by Apple through the App Store. The app asks Apple whether the purchase has been made and stores only that yes-or-no answer on your device. Payment details are never seen by the app or by the developer.

Network access

Apart from the App Store purchase check described above, the app does not connect to the internet. Puzzles are generated on your device and everything works offline.

Children

The app is suitable for all ages. Because it collects nothing, there is nothing about a child that it could collect.

Changes

If this policy ever changes, the updated version will appear on this page with a new date above.

Contact

Questions about privacy, or anything else about the app: kai.kunze@gmail.com.