Kana Juku — Privacy Policy
Last Updated: 2026-04-15
1. Overview#
Kana Juku, developed by QQder339, is a Japanese kana learning app designed for native Chinese speakers.
In short: We do NOT collect, store, or transmit any of your personal data to external servers.
2. Data We Do NOT Collect#
This app does not collect:
- Personally Identifiable Information (name, email, phone number)
- Location data
- Device identifiers
- Usage analytics or tracking data
3. Locally Stored Data#
The following data is stored strictly on your device and never transmitted externally:
- Learning Progress: Tracks your kana learning status
- User Settings: Saves your preferences
- Handwriting Input: Processed in real-time memory and discarded immediately; no files are saved
- Widget Data: Uses iOS shared container mechanism to display kana on home screen widgets (local only)
4. Offline AI Features#
All AI features operate completely offline:
- Handwriting Recognition: Uses on-device machine learning models; all processing is local
- Text-to-Speech: Uses pre-downloaded audio assets
- AI Assistance: Uses local Large Language Models (LLM); inference is performed on-device without data upload
5. Third-Party Services#
This app does NOT use any third-party analytics or advertising frameworks (No Google Analytics, No Facebook SDK, No Ads).
6. Network Access#
Network access is restricted to:
- Downloading AI Models (Optional): Only connects when you explicitly choose to download local model resources
- External Links: Opens the browser when you tap “Rate on App Store” or “Privacy Policy”; opens the browser when you use the “Search Web” function after translation/recognition
Other than the above, the app does not initiate network connections.
7. Contact Us#
If you have questions about this Privacy Policy, please contact:
📧 qqder339@gmail.com
Subject: Kana Juku Privacy Policy Inquiry