SudokuPrivacy Policy
Last updated: October 22, 2026
dowhiletrue.co (“we”, “us”, “our”) makes the Sudoku app for Android, iPhone and iPad (the “App”). This policy explains what data the App collects, why, who we share it with, and the choices you have.
The short version. You can play without an account. If you sign in, we store your game progress so it syncs across devices. Free users see ads from Google AdMob. We never sell your personal data, and you can delete your account in the app at any time.
1. Data we collect
1.1 Data you give us
- Account: if you sign in with Google, Apple or email, we receive your email address and a user ID. With Sign in with Apple you can hide your email; we then receive a private relay address.
- Username: the name you choose for leaderboards. It is never taken from your real name.
- Problem reports: if you report a puzzle, we receive the category and any text you write.
1.2 Data collected automatically
- Game data: saved games, progress, statistics, completion times, hints and mistakes, daily challenge, Time Attack and event results.
- Purchases: which subscription or lifetime purchase you own and its status. Payments are processed by Apple or Google; we never see your card details.
- Device and app information: device model, operating system, app version, language, and a push-notification token.
- Usage and diagnostics: which screens and features are used, crash reports and performance data.
- Advertising identifiers: the Google Advertising ID (Android) or, only if you allow tracking, the IDFA (iOS), used to show and measure ads.
- Approximate location: our ad and analytics providers may infer your country or region from your IP address. We do not collect precise location.
2. How we use data
- To run the App: save and sync your games, keep you signed in, run leaderboards and unlock Premium.
- To show ads to free users and measure them, according to your consent choices.
- To understand how the App is used, fix crashes and improve features.
- To send optional notifications, such as daily challenge reminders. You can turn them off in the App or your device settings.
- To answer your support requests and keep the App secure.
3. Service providers
We use these providers to run the App. They process data on our behalf or under their own privacy policies:
| Provider | Purpose |
|---|---|
| Google Firebase (Authentication, Firestore, Analytics, Crashlytics, Cloud Messaging) | Sign-in, cloud save, leaderboards, usage analytics, crash reports, notifications |
| Google AdMob and its consent tools | Ads for free users, ad measurement, consent management |
| RevenueCat | Managing subscriptions and purchases |
| Apple (App Store, Sign in with Apple, Game Center) | Payments, sign-in, leaderboards on iOS |
| Google (Play Store, Play Games Services, Google Sign-In) | Payments, sign-in, leaderboards on Android |
Leaderboards show your username and scores to other players. We may also disclose data if the law requires it, to protect our rights or users’ safety, or as part of a merger or sale of the business.
We do not sell your personal information.
4. Ads, tracking and consent
- In the EEA, UK and Switzerland we ask for your consent before personalized ads, using Google’s consent message. You can change your choice later in the App’s settings.
- On iOS, we ask permission before using the IDFA (App Tracking Transparency). If you decline, you still see ads, but they are not personalized.
- On Android, you can reset or delete your advertising ID in your device settings.
- Premium removes all ads.
5. Storage, security and retention
- Without an account, your games are stored only on your device. With an account, they are also stored on Google Cloud servers (Firebase), which may be outside your country.
- All data is encrypted in transit (HTTPS/TLS), and access to cloud data is limited to your own account by security rules.
- Account data is kept while your account exists. Inactive accounts may be deleted after 24 months without use.
- Analytics data is kept for up to 14 months and crash reports for up to 90 days.
- Purchase records are kept by Apple, Google and RevenueCat as required for accounting and tax.
6. Deleting your account
You can delete your account and cloud data at any time in the App: Settings › Delete account. You can also request deletion by email. See Delete your account for details. Deleting your account does not cancel an active subscription; cancel it in your App Store or Google Play account.
7. Your rights
Depending on where you live, you may have the right to access, correct, export or delete your data, to object to or restrict processing, and to withdraw consent at any time.
- EEA/UK (GDPR): we rely on your consent for personalized ads and analytics where required, on our contract with you to provide the App, and on legitimate interests for security and improvements. You may complain to your data protection authority.
- California (CCPA/CPRA): you may request to know or delete your data. We do not sell or share personal information for cross-context behavioral advertising beyond the ad consent choices described above, and we will not discriminate against you for using your rights.
To use these rights, email info@dowhiletrue.co.
8. Children
The App is not directed at children under 13, and we do not knowingly collect personal data from them. If you believe a child has given us personal data, contact us and we will delete it.
9. Changes to this policy
We may update this policy. We will change the date above and, for significant changes, let you know in the App or in the store update notes.
10. Contact
dowhiletrue.co, Slovakia
Email: info@dowhiletrue.co
Website: sudokuoffline.com