Privacy Policy

Effective: September 29, 2026

This policy explains how this application handles information you provide or generate on your device. No account is required. The application does not use its own server to store analysis data and includes no advertising, cross-app tracking, or third-party behavioral analytics SDK.

1. Data processed

• Public device information such as model identifier, system version, and storage space.
• Analytics and Sysdiagnose files you select and their parsed results, including battery capacity, cycle count, temperature, voltage, energy-use records, and identifiable hardware configuration data.
• Results you confirm during guided tests of the display, cameras, microphone, speakers, sensors, and system state.
• Reports, file history, and charging records generated locally.
• Product, transaction, and entitlement status returned by the App Store. Apple handles payment credentials; the application cannot access your full payment-card details or Apple ID password.

2. Files and permissions

A file is read only when you actively import it through the document picker or system share flow. Camera, microphone, Bluetooth, Face ID, or motion-sensor permission is requested only when you start the related guided test and is used locally for that test. Denying a permission does not affect unrelated features.

3. Use and storage

Parsing, scoring, trends, and report generation occur on device. Imported files, results, tests, and reports are stored in the application sandbox. A lifetime-unlock marker may remain in the system Keychain so the device can retain its local entitlement after reinstall; cross-device restoration relies on Apple's purchase record.

4. Sharing and disclosure

Your data is not automatically uploaded or sold. A selected report is passed to the iOS share sheet only when you choose Share or Export, and then only to the destination you select. Apple processes purchases and restorations under Apple's privacy policy.

5. Retention and deletion

You can delete imported files, analysis records, and reports from Data Management. Uninstalling generally removes sandbox data, while iOS may retain the Keychain entitlement marker. Restore Purchases can validate a non-consumable purchase made with the same Apple ID.

6. Security and accuracy

iOS sandboxing and Keychain storage protect local data, but no local software can guarantee absolute security. Results depend on available system data, file integrity, and user actions. They are informational and do not replace diagnosis by Apple or an authorized repair provider.

7. Children's privacy

The application is not directed to children and does not knowingly collect children's personal information.

8. Changes

This policy may change as features or legal requirements change. The effective date on this page will be updated.

9. Contact

For privacy questions, email jiankfzhanghao@163.com.