Answers to common questions — and a real person if you need one.
The #1 way to help — bigger than a donation
A quick rating and review is the single most powerful thing you can do to help — and it’s completely free.
Simply Sudoku has no ads and no advertising budget. It can’t pay to appear on the app stores — it only gets noticed when players like you leave a review. Every rating pushes it higher in search, helps new people discover an honest, ad-free game, and keeps it growing without spending a cent on ads. Great reviews are our advertising.
Already left a review? Thank you — it genuinely makes the difference. Telling a friend helps just as much. 🙂
Live now on both Google Play and the App Store.
Yes. There are no ads, no subscriptions, no paywalls, and no in-app purchases required to play. Donations are welcome but entirely optional.
No to both. The app works completely offline and there is no sign-up or login. You install it and play.
No. This app does not collect any user data. Your current game, best times, and settings are stored only on your device and are never sent anywhere. See the Privacy Policy for details.
Simply Sudoku is built to run on Android, iOS, and Windows. Store links will appear on the download page as each version goes live.
Yes. Every puzzle is generated and verified to have exactly one solution, so you can always solve by logic alone — no guessing required.
Tap the pencil to toggle notes mode and pencil-in candidates. Hints reveal a correct digit (a limited number per difficulty). Undo and redo let you step back and forward through your moves without penalty.
Progress and best times are saved locally on your device. Clearing the app’s data, uninstalling, or moving to a new device will remove them, since nothing is stored in the cloud. If something looks wrong, please get in touch.
The single best way is to rate & review Simply Sudoku on your app store — it’s free, takes about 30 seconds, and it’s what helps new people discover the app. With no ads and no advertising budget, reviews are how Simply Sudoku gets noticed instead of paid ads. After that: tell others and spread the word, and — if you’d like — make a small donation. Can’t donate right now? No problem at all — a review, or even a quick email to say you appreciate Simply Sudoku, means just as much. Every bit helps keep this software ad-free.
All feedback is welcome. Simply Sudoku does not collect any information about you, so there’s no way to reach you first — if you have a bug report, a suggestion, or just a kind word, please email. Every message gets read, and you’ll get a reply.