Windows App Terms of Use
Last updated: 28 October 2026
These terms apply to the Sudoku69 app for Windows. They add to our master Terms of Use, which cover the website and every official app. The privacy side is on the Windows App Privacy Policy page.
Which terms apply to the app?
Three sets of terms apply together:
- The Microsoft Standard Application License Terms, because you get the app from the Microsoft Store.
- These Windows App Terms.
- The master Terms of Use, including the Puzzle License.
If they conflict, the order is:
- For your licence to install and run the app, and for downloads, payments and refunds through the Store, the Microsoft terms and the Store's rules come first.
- For everything else about the app, these Windows App Terms come before the master Terms of Use.
Where do I get the app?
The app is distributed through the Microsoft Store only, for Windows 11. Install it from the Store listing, not from other websites or file sharing. We cannot vouch for copies from other sources, and they are not covered by these terms.
Does the app cost anything?
The app is free to download and play. This release has no purchases of any kind. If a later version adds paid features, the Store's payment terms will apply to them and this page will say so before that version is released.
How do updates work?
The Microsoft Store installs and updates the app, following your Store and Windows settings. An update can add, change or remove features. We do not promise to keep supporting every older version, and a feature that needs our servers, such as the Daily Challenge, may stop working on an old version.
Can I play offline?
Yes. The app comes with its puzzles and plays fully offline. When you open the Daily Challenge while your PC is online, it downloads that day's puzzles from our puzzle database, at most once a day. If you stay offline, you keep playing the puzzles that came with the app and the last daily set it downloaded. What the app sends and receives is described in the Windows App Privacy Policy.
What data stays on my PC, and what does uninstalling remove?
The app keeps your settings, your current game, your play history and your coins in its own storage area on your PC. We do not receive this data. It is not backed up or synced, so it cannot be restored on another PC.
Uninstalling the app removes this data. To clear it without uninstalling, open Windows Settings, then Apps, Installed apps, Sudoku69, Advanced options, Reset.
How do coins work in the app?
Coins have no monetary value. They cannot be bought, sold, transferred or exchanged for money, goods or services.
Without sign-in, the app keeps your coins on your PC, up to a total of 1,800. When you reach that total, no more coins are added. This release does not include sign-in, so coins cannot be moved to another device.
Puzzles and acceptable use
The puzzles in the app are covered by the Puzzle License. You may solve them in the app for personal use. You may not extract the puzzle files from the app package, copy them, or use them anywhere else. The other limits in the master Terms of Use apply to the app in the same way as to the website.
Links that open your browser
Links to sudoku69.com, such as the wiki, open in your default web browser. The website's Terms of Use and Privacy Policy apply there.
How do I get support?
Email privacy@sudoku69.com or use the contact form on the website. Mention that you use the Windows app and its version, which you can see in Windows Settings under Apps, Installed apps.
Changes to these terms
We may update these terms. The date at the top shows the last change. If a later version of the app adds sign-in, purchases or anything else that changes what the app collects or what you agree to, we will update these terms and the privacy page before that version is released. Keep using the app after a change and you accept the updated terms.
Contact
Questions about these terms? Use our contact form.