Privacy Policy

Last Updated: June 2, 2026  |  Effective Date: June 2, 2026

1. Introduction

Welcome to Cube Master (the "App"). We take your privacy seriously. This Privacy Policy explains how the App handles information. Please read this Policy carefully before using the App.

2. Information We Collect

The App does not collect any personally identifiable information. Specifically:

• No account registration or login is required.
• We do not collect your name, phone number, email address, or other identifying information.
• We do not collect device identifiers (IDFA, IDFV, etc.).
• We do not collect location data.
• The App does not integrate any third-party analytics, tracking, or advertising SDKs.
• The App only communicates with Apple's servers for In-App Purchases (see Section 5). All other gameplay features run fully offline.

3. Device Permissions

The App may request the following device permissions:

Permission	Purpose	Details
Camera	To scan the six faces of a physical Rubik's Cube.	Used only by the "Scan & Restore" feature. Image frames are processed on-device in real time for color recognition. No photo or video is saved or uploaded.

You can revoke these permissions at any time in iOS Settings. Once revoked, the related feature will be unavailable, but other features of the App will continue to work normally.

4. Local Data Storage

The App stores the following data locally on your device to enhance your experience:

• Game Statistics: Number of solves, best time, average time, and similar records.
• User Preferences: Color theme, sound effects, haptic feedback, and other settings.
• Game Progress: Current cube state (for resuming an interrupted session).
• Tutorial Progress: Completed levels, stars earned, and unlock status.

All such data is stored entirely on your iPhone/iPad and is never transmitted to any external server. Uninstalling the App permanently removes all local data.

5. In-App Purchases

The App offers an optional one-time In-App Purchase to unlock the full Tutorial Quest content. The purchase flow is handled entirely by Apple's StoreKit framework:

• Payment and account information is processed by Apple, not by us. We never receive or store your payment details, Apple ID, or any personal financial information.
• The App only receives the transaction result (success / cancelled / pending) and a signed entitlement record from Apple, used solely to unlock paid content on your device.
• To restore previous purchases on a new device or after reinstalling the App, please use the "Restore Purchases" button in the App. This action queries your Apple ID purchase history via Apple's servers.
• For Apple's handling of payment data, please refer to the Apple Privacy Policy.

6. Third-Party Services

Except for Apple's StoreKit (for In-App Purchases) mentioned above, the App does not integrate any third-party services, including but not limited to:

• No third-party advertising SDKs
• No third-party analytics or tracking SDKs
• No social media login
• No push notification services
• No cloud sync services

7. Children's Privacy

The App does not knowingly collect information from children under 13. Since the App does not collect any personal data, users of all ages can use it safely.

8. Data Security

Since the App does not transmit any personal data over the network, there is no risk of data leakage, interception, or unauthorized access through network channels. Your game data is protected by iOS sandbox mechanisms, and other apps cannot access it.

9. Changes to This Privacy Policy

If we make changes to this Privacy Policy, we will publish the updated version in the App or on this page with a new effective date. Material changes will be communicated through in-app notifications.

10. Contact Us

If you have any questions or suggestions regarding this Privacy Policy, please contact us at:

• Email: 410869924@qq.com