Privacy Policy

Last updated: August 27, 2026

1. Information we collect

At Sudoky we respect your privacy. The app is designed to minimise the collection of personal data. We do not ask for or store personally identifiable information (name, email, phone number) for basic use of the game.

2. Local storage

We use the device's local storage to save your game progress, unlocked themes, scores, settings and cookie consent status. This information stays on your device and is not transmitted to our servers.

3. Backend services (Firebase)

We use Google Firebase to run the app: Firestore (theme database), Firebase Storage (theme images) and Firebase Analytics (anonymous, aggregated usage analytics). These services may log technical connection data. You can read more in the Firebase Privacy Policy.

4. Advertising (Google AdMob)

This app is free thanks to Google AdMob advertising. If you accept cookies, Google uses your device's advertising identifier to show personalised ads. If you decline, ads are shown non-personalised and the game works exactly the same. You can disable personalised advertising from Google Ads Settings.

5. Push notifications

If you grant permission, the app may send push notifications about daily challenges and events. You can revoke this permission at any time in your device settings.

6. In-app purchases

Gem purchases and ad removal are processed through Google Play and RevenueCat. We neither receive nor store your card details — only confirmation that the purchase completed.

7. Changes to this policy

We reserve the right to amend this policy at any time. We recommend reviewing it periodically.

8. Contact

For any privacy-related question, write to info@jisas.studio.

Sudoky — classic and picture sudoku, collectible themes and daily challenges. This document is available in several languages for use on the Google Play listing.