Privacy Policy
Offline Sudoku (“the app”) is an offline-first Sudoku puzzle app. This policy explains what information the app handles and how it is used.
Summary
- No account is required.
- Your puzzles, progress, stats, and settings are stored on your device.
- We do not sell your personal information.
- The app is designed to work without an internet connection.
Information stored on your device
The app stores data locally on your phone or tablet, including:
- Game progress (board state, notes, timer, mistakes, hints used)
- Daily puzzle progress and streak-related records
- Completion stats and history
- App settings (for example theme, haptics, and gameplay preferences)
- Premium or “Remove Ads” entitlement state, when applicable
This data stays on your device unless you delete the app or clear app data. Uninstalling the app removes locally stored data from your device.
Information we do not collect directly
We do not require you to create an account or provide your name, email address, or phone number to use the app.
Analytics
The app records product events locally (for example puzzle started, puzzle completed, or setting changed). These custom events remain on your device and are not transmitted. The app also uses Expo EAS Insights, which automatically sends app-launch events to Expo so we can view aggregated usage by platform and app-store version. If we add more detailed online analytics in a future update, this policy will be updated before that collection begins.
Advertising
Offline Sudoku does not show banner or interstitial ads during gameplay. We use Google AdMob to deliver two kinds of non-intrusive ads: optional rewarded ads, which appear only when you choose to watch one for a clear benefit (for example an extra hint), and native ads on non-gameplay surfaces such as the puzzle-completion screen.
Google AdMob may collect device and usage data to serve and measure ads, as described in Google’s advertising policies. The app requests non-personalized ads, does not request App Tracking Transparency permission, and does not intentionally access the iOS advertising identifier. Players who purchase “Remove Ads” are not shown native ads and receive the rewarded perks without watching an ad.
In-app purchases
Purchases are processed by Apple (App Store). We receive confirmation of purchase status so premium features can work offline. We do not receive your full payment card details.
Children
The app is a general-audience puzzle game and is not directed at children under 13. We do not knowingly collect personal information from children.
Changes to this policy
We may update this policy from time to time. The “Last updated” date at the top will change when we do. Continued use of the app after changes means you accept the updated policy.
Contact
Questions about privacy? See our Support page.