1. Overview
iYang takes your privacy very seriously. This privacy policy explains how we handle your data.
🌿 Core Principle: All personal health data is stored only on your device and never uploaded to any server
2. Data Collection
- No personal health data collected: We do not collect, store, or upload any of your personal health data to cloud servers
- Completely local storage: All photos, health records, voice data, and questionnaire responses are stored only locally on your device
- No cloud upload: All analysis and processing is done locally on your device; data never leaves your phone
3. Data Usage
- Photos for local analysis only: Tongue and face photos are analyzed only on your device
- Voice data not uploaded: Voice data is processed locally and not uploaded
- Questionnaire data stored locally: All questionnaire responses are stored only on your device
- No third-party sharing: We do not share any data with third parties
4. Data Security
- Local storage protection: All data is stored in the app's sandbox directory
- System encryption: Leverages device encryption to protect your data
- Users can delete all data: You can view, export, or delete all personal data in the app at any time
5. User Rights
- View data: You can view all personal data in the app at any time
- Export data: You can export all personal data at any time
- Delete data: You can delete all personal data at any time
6. Contact Us
If you have any questions about this privacy policy, please contact us:
- Email: support@iyang.app
Last Updated: April 9, 2026