Privacy Policy

0ARCH Sudoku for iOS by 0ARCH (ZeroArch LLC)

Last updated: May 28, 2026

1. Overview

0ARCH Sudoku is a fully offline Sudoku app developed by 0ARCH (ZeroArch LLC), based in Miami, FL. It does not collect, transmit, or share any personal data. Your puzzles, scores, streaks, and preferences stay on your device.

2. Data Collection

This app collects no data. It does not use analytics, advertising SDKs, crash reporters, or any third-party services. There are no user accounts and no sign-in.

3. Data Storage

Game progress, completed puzzle records, and settings (theme, accent color, notification preferences) are stored locally on your device using SwiftData and UserDefaults. This data is not accessible to us or any third party.

4. Notifications

If you enable the daily reminder, a local notification is scheduled on your device. No data is sent to any server. You can disable notifications at any time in the app's Settings or in iOS Settings.

5. Third-Party Services

This app uses no third-party services, SDKs, or frameworks beyond Apple's standard iOS frameworks.

6. Children's Privacy

This app does not collect data from anyone, including children. It is safe for users of all ages.

7. Changes to This Policy

We may update this Privacy Policy from time to time. Changes will be reflected by updating the “Last updated” date above. Since no data is collected, material changes are unlikely.

8. Contact

If you have questions about this Privacy Policy, contact us at support@0arch.io.