Privacy Policy

1. Core Commitment: 100% Local

• No Network Requests: Core application features do not require any network connection, and the application does not send your data to any external servers.
• Local Storage: All your medical records, photos, OCR-recognized text, and tags are stored only on your local device.
• Local Processing: All computational tasks (such as image compression, OCR text recognition) are performed using your device's own processing power.

2. Data Encryption

To protect your data from unauthorized access, we employ the following security measures:

• Database Encryption: We use the SQLCipher algorithm for full-database encryption of the local database.
• File Encryption: All image attachments are independently encrypted using the AES-256 algorithm before being stored in the application's private directory.
• Security Lock: The application provides a PIN and biometric (fingerprint/face) security lock as the first line of defense for accessing data.

3. Data Control

You have absolute control over your data:

• Manual Backup: The application provides an encrypted backup feature; backup files (.phbak) are kept by you.
• Physical Deletion: When you delete a record within the application, we execute physical erasure logic to ensure data is completely removed from the disk.
• App Uninstallation: If you uninstall the application, all encrypted data and keys within the system sandbox will be completely cleared by the system.

4. Permission Usage

• Camera: Used for taking photos of paper medical records.
• Photo Library: Used for importing existing medical record images.
• Biometrics: Used for identity verification when the application starts.

5. Contact Us

Since this application does not collect any data, we cannot proactively contact you through the application. If you have any questions or feedback, please contact us through the contact information provided by the App Store or the open-source community.