Privacy Policy

1. Information we collect

Purchases

Premium purchases are not active in the current release. If purchases are introduced later, payment details will be processed by Google Play, not directly by Sudoku Twist. We may receive transaction status, product identifiers, and entitlement information needed to provide the purchased feature.

2. How we use information

• Provide puzzles, save progress, and restore your preferences.
• Sync progress between sessions when you choose Google sign-in.
• Respond to bug reports, suggestions, and questions.
• Maintain app reliability, security, and fraud prevention.
• Display and measure advertising where advertising is enabled.
• Comply with legal obligations and enforce applicable policies.

3. When information is shared

We do not sell or rent personal information. Information may be processed by the following service providers only as needed to operate the app:

• Google Firebase: authentication, anonymous authentication, cloud progress storage, and feedback storage.
• Google Sign-In: optional account authentication.
• Google AdMob / Google Mobile Ads: advertising, measurement, and fraud prevention.
• Google Play: app distribution and, if enabled in a future release, payment and purchase processing.

We may also disclose information if required by law, to protect users, or to investigate abuse, fraud, or security incidents.

Learn more through the Google Privacy Policy , Firebase Privacy and Security information , and How Google uses information from apps that use its services .

4. Data retention, access, and deletion

• Local gameplay data remains on your device until you clear the app's storage or uninstall the app.
• Synced account progress is retained while it is needed to provide account synchronization or until deletion is requested.
• Feedback submissions are retained for support, product improvement, security, and record-keeping purposes, then removed when no longer reasonably needed.

Signing out stops account synchronization but does not automatically delete previously synced data. To request access to or deletion of synced progress, account-linked data, or feedback, email abdeldjabar.aichi@gmail.com. Include enough information to identify the relevant account or feedback submission. We may need to verify your identity before completing a request.

See the Sudoku Twist account deletion page for complete request instructions and retention details.

You can also manage information associated with your Google Account through your Google Account settings.

5. Security and international processing

We use reasonable technical and organizational safeguards, including authenticated access controls and encrypted network connections provided by the operating system and service providers. No method of storage or transmission is completely secure.

Google and Firebase may process information on servers located outside your country. Their processing is governed by their terms, privacy policies, and applicable data-transfer safeguards.

6. Children's privacy

Sudoku Twist is not directed to children under 13, and we do not knowingly collect personal information from children under 13. If you believe a child has submitted personal information, contact us so we can review and delete it where appropriate.

7. Changes to this policy

We may update this policy when the app, service providers, or legal requirements change. The updated page will show a revised effective date. Material changes may also be communicated in the app or store listing where appropriate.

8. Contact

For privacy questions, data-access requests, or deletion requests, contact the Sudoku Twist developer at:

Email: abdeldjabar.aichi@gmail.com