Big Sudoku privacy policy
Effective October 2, 2026
Big Sudoku is an Android app by Kevin Fitzgerald for Fire tablets. It does not collect your data. There are no ads, no analytics, no accounts and no server of ours. The app has no permission to use the internet at all.
What it keeps on your device
- The puzzle you are playing (numbers, notes and undo history)
- Your stats (puzzles solved, daily streak, the next puzzle number for each level)
- Your settings (colors, text size, highlights, clock)
This stays in the app's private storage on your device. Uninstalling the app deletes it. If you turn on your device's own backup, Android may include it in that backup, which is covered by your device maker's privacy policy.
Permissions
None. The app asks for no Android permissions.
Links that leave the app
The About screen can open this page in your browser, the app's page in the Amazon Appstore, or your email app to write to support. Those apps handle anything you do there.
Purchases
Big Sudoku is a one-time purchase in the Amazon Appstore, with no in-app purchases or subscriptions. Amazon's privacy notice covers that purchase.
Sharing and selling
Nothing is collected, so nothing is sold or shared.
Children
Big Sudoku isn't directed at children under 13 and collects nothing from anyone.
Changes
If this policy changes, this page will show the new date.