Sudoku: Mindoku Daily Puzzle

Privacy Policy

This Privacy Policy explains how Sudoku: Mindoku Daily Puzzle collects, uses, stores, and protects information when you use the app and related support or account features.

Last updated: April 18, 2026

1. Who this policy applies to

This policy applies to the Sudoku: Mindoku Daily Puzzle Android app and related support, account, premium, and cloud-sync workflows operated by the app publisher.

2. Information the app may collect

Account and sign-in data

• An app account identifier, including anonymous Firebase Authentication IDs.
• Google account sign-in information if you choose to sign in with Google.
• Your Firebase user ID when an account is linked or authenticated.

Profile and support-related data

• Display name.
• Profile photo URL if you choose to sign in with Google or set a profile image.
• Public user ID used for in-app profile and stats features.

Gameplay, progress, and app data

• Daily challenge progress, including started or completed status and timestamps.
• Saved game state and gameplay preferences stored on your device.
• Cloud-synced profile, stats, and progress data where supported by the app.
• Gameplay result data such as score, mistakes, elapsed time, wins, and puzzle mode or difficulty.

Analytics and diagnostics

• Firebase Analytics events and screen usage information.
• Crash diagnostics and technical error information through Firebase Crashlytics.

Premium and subscription data

• RevenueCat app user ID and entitlement status.
• Subscription or purchase status for Mindoku Pro products.

Advertising and monetization data

• If you use an ad-supported version of the app, Google AdMob may process device and app interaction data for ad delivery, measurement, fraud prevention, and diagnostics.
• This may include the Android Advertising ID, IP-based approximate location, app events, and device or network metadata made available through the Google Mobile Ads SDK.
• Mindoku Pro may provide an ad-free experience for eligible premium users.

3. How information is used

• To create and maintain your account and restore access across sessions.
• To save progress, Daily challenge state, and profile information.
• To provide gameplay features such as saved games, insights, and cloud-backed progress.
• To improve app quality, stability, and feature decisions through analytics and crash reporting.
• To manage Mindoku Pro access, purchases, entitlement restoration, and ad-free access.
• To serve and measure ads in ad-supported experiences through Google AdMob.
• To respond to support, privacy, and account deletion requests.

4. Where information is processed or stored

The app currently uses third-party infrastructure providers including:

• Google Firebase, including Authentication, Firestore, Analytics, and Crashlytics.
• Cloudflare services for cloud-backed app APIs and database storage.
• RevenueCat for subscription management and entitlement handling.
• Google Play for subscription billing and purchase processing.
• Google AdMob for ad delivery, measurement, and fraud prevention in ad-supported experiences.

5. Data sharing

The app publisher does not sell your personal information. Information is shared only as needed with service providers that help operate the app, such as Firebase, Cloudflare, RevenueCat, Google Play, and Google AdMob, or when required by law.

6. Local device storage

Some app settings, saved games, and cached status information are stored locally on your device. Removing the app or clearing app data may remove locally stored information that is not synced to the cloud.

7. Retention

Information may be kept for as long as needed to operate the app, maintain account features, support gameplay history, meet legal obligations, and handle premium entitlement or transaction records. Some records may be retained longer by platform or payment providers.

8. Your choices

• You can choose whether to link your account with Google.
• You can request deletion of your account-related cloud data using the delete account page.
• You can contact support for privacy questions or account-related help.

9. Account deletion requests

If you created or used an account in Sudoku: Mindoku Daily Puzzle, you can request deletion of your account and associated cloud data by following the instructions on the Delete Account Request page.

10. Children’s privacy

The app is not intended to knowingly collect personal information from children in violation of applicable law. If you believe information was submitted in error, contact support.

11. Changes to this policy

This policy may be updated when app features, monetization, or data practices change. Updated versions will be posted on this page with a revised “Last updated” date.

12. Contact

For privacy questions or requests, contact: gear.lab.dev@gmail.com