Privacy Policy

Paper Sudoku

Last updated: 1 September 2026

Paper Sudoku does not itself collect, sell, or share any personal information. The app does include one third-party SDK, Google Mobile Ads, used only for the optional "watch an ad for a hint" feature — details below.

What the app stores

• Your game progress, settings, and statistics (best times, streaks, win rates) are stored locally on your device.
• If you're signed into iCloud, this same data may sync across your own devices using Apple's iCloud Key-Value Storage. This data lives in your personal iCloud account — it is never sent to us or to any third party, and we have no access to it.

Advertising

Paper Sudoku uses Google Mobile Ads (AdMob) to show optional rewarded video ads — watching one earns you an extra hint. This is entirely opt-in: ads only play when you choose to tap "Watch Ad," never automatically.

To serve these ads, Google's SDK may collect data such as your device's advertising identifier, IP address, and general device and app information, and may share this with its advertising partners. This collection and processing is done by Google, not by us, and is governed by Google's Privacy Policy. We do not receive or store any of this data ourselves.

You can avoid this entirely by never tapping "Watch Ad," or by unlocking Paper Sudoku Pro, a one-time in-app purchase that removes ads and hint limits altogether.

In-app purchases

Paper Sudoku Pro is processed entirely by Apple through StoreKit. We never see or store your payment details — Apple handles the transaction and tells the app only whether you own the purchase.

What the app does not do

• No analytics or tracking of your in-game activity
• No account creation, no personal information requested
• No data sold to anyone

Contact

Questions about this policy? Email general@atlasstudiosuk.com.