Sudoku: Scan, Solve, Learn
Last updated: 27/07/2026
Short version: this app collects nothing about you, and sends nothing anywhere.
We do not collect, store, transmit, or share any personal information. There are no user accounts, no analytics, no advertising, and no third-party tracking of any kind.
The app contains no networking code. It cannot send data off your device because it has no means to do so, and it works fully offline.
If you use the Scan feature, the app reads the photo you take or choose so it can recognise the digits in a sudoku grid. This happens entirely on your device using a built-in machine-learning model. Your photo is never uploaded, never stored by us, and is discarded once the grid has been read.
Your chosen colour theme and your play statistics (puzzles solved, hints used, and similar counters) are saved locally on your device only. Deleting the app removes them permanently.
The app is suitable for all ages and collects no information from anyone, including children.
Any future change to this policy will be published on this page with an updated date.