Last Updated: February 26, 2026
Thank you for using YHCipher ("we", "our", or "the App"). We are committed to protecting your privacy. This Privacy Policy explains how YHCipher handles your information.
- Information We Collect
YHCipher does NOT collect, store, or transmit any personal information to external servers. All data processing occurs entirely on your device.
Specifically:
- We do not collect personal identification information (name, email, phone number, etc.).
- We do not collect usage analytics or behavioral data.
- We do not use third-party analytics, advertising, or tracking SDKs.
- We do not require account registration.
- Data Storage
All data created within the App is stored locally on your device:
- Encrypted Notes: Stored in the App's local storage on your device. Notes are protected by biometric authentication (Face ID / Touch ID) or device passcode.
- Conversion History: Stored locally on your device. You can disable history recording or clear all history at any time through the App's Settings.
- User Preferences: Settings such as haptic feedback and history toggle are stored locally using standard device preferences.
No data is uploaded to or stored on any remote server.
- Encryption and Security
- AES encryption operations use AES-256-GCM, an industry-standard encryption algorithm. All encryption and decryption are performed locally on your device.
- Hash generation (MD5, SHA-1, SHA-256, SHA-384, SHA-512) is computed locally.
- Biometric authentication is handled by Apple's LocalAuthentication framework. We do not access or store your biometric data.
- Third-Party Services