Hand Mirror AI Privacy Policy

Effective date: April 9, 2026

This privacy policy applies to the Hand Mirror AI (손거울 AI) mobile app. The app uses your device's front camera as a smart beauty mirror with AI-powered face analysis, adjustable brightness, color temperature controls, and various mirror features.

1. Data we access

• Camera access is used solely to display a real-time mirror preview on your screen and to perform on-device AI face analysis.
• Camera frames are processed locally on your device using Google ML Kit Face Detection and are never recorded, stored, or transmitted.
• No images or video are captured, saved, or uploaded at any time.

2. AI face analysis

• Face analysis (emotion detection, facial symmetry, face shape, lighting condition) is performed entirely on your device using Google ML Kit.
• No face data, analysis results, or biometric information is stored, transmitted, or shared with any server or third party.
• Analysis results are displayed in real-time and discarded immediately when the camera view is closed.

3. Data stored on your device

• User preferences such as brightness level, color temperature, zoom level, mirror flip, grid settings, language preference, and AI analysis toggle state are stored locally on your device using Android DataStore and SharedPreferences.
• These preferences remain on your device and are never transmitted to any server.
• All stored data is removed when the app is uninstalled or app data is cleared.

4. Network and internet

• The app requires internet permission for displaying in-app promotional banners.
• No personal data, camera data, or analysis results are sent to any server.

5. Advertising

• The app may display in-app promotional banners for other apps by the same developer.
• The app uses the Google Play Services Advertising Identifier (AD_ID) solely for ad-related purposes.
• No personal information is shared with advertising networks.

6. Personal information

• The app does not collect, process, or store any personal information.
• The app does not require user account creation or login.
• The app does not access contacts, location, microphone, or any other device data beyond the front camera.

7. Children's privacy

• The app does not collect any data from any user, including children under the age of 13.
• The app is safe for use by all age groups.

8. Changes to this policy

• Any updates to this privacy policy will be reflected on this page with a revised effective date.

9. Contact

For privacy inquiries, please contact us at: https://github.com/formin/handmirrorai/issues