Last updated: 23 September 2026
What we collect. Nothing. Wren Sudoku has no account, no server, no analytics, no advertising and no tracking, and it never connects to the internet.
What stays on your iPhone. Your game in progress and your settings are saved only on your iPhone so you can pick up where you left off. Delete the app to remove them.
Children. Wren Sudoku collects no personal information from anyone, including children.
Support and contact. Questions or bugs: mo.eric.cui@gmail.com