Privacy Policy for Gojuon Master
🎌 Privacy Policy
Gojuon Master - Your Japanese Learning Companion
1. Introduction
Welcome to Gojuon Master ("we," "our," or "the App"). We are committed to protecting your privacy and ensuring transparency about how we handle your information. This Privacy Policy explains our data practices for the Gojuon Master mobile application.
Gojuon Master is a Japanese language learning application designed to help users master Hiragana and Katakana through interactive stages, practice modes, and achievements.
2. Information We Collect
2.1 Information Stored Locally on Your Device
Gojuon Master stores the following information locally on your device using secure storage mechanisms:
- Game Progress: Your completed stages, star ratings, and unlocked content
- Achievement Data: Your earned achievements and progress toward unlocking new ones
- Practice Records: Your practice session history and learned characters
- Settings Preferences: Your language preference (English or Traditional Chinese) and other app settings
- Performance Statistics: Time taken to complete stages, accuracy rates, and mistake counts
2.2 Information We Do NOT Collect
Gojuon Master does NOT collect, access, or transmit:
- Personal identification information (name, email address, phone number)
- Location data
- Device identifiers for tracking purposes
- Contact lists or photos
- Usage analytics or behavioral data
- Any data that can identify you personally
3. How We Use Information
The information stored locally on your device is used solely for:
- Saving Your Progress: Ensuring you don't lose your learning progress between sessions
- Personalizing Your Experience: Providing appropriate difficulty levels based on your progress
- Tracking Achievements: Monitoring your milestones and unlocking achievements
- Displaying Statistics: Showing your performance metrics and learning journey
- App Functionality: Maintaining proper app operation and user experience
4. Data Storage and Security
All data is stored locally on your device using industry-standard secure storage mechanisms (SharedPreferences on Android, UserDefaults on iOS). Your data remains on your device and is protected by your device's security features.
Data Retention: Your data remains on your device until you uninstall the app or manually clear app data through your device settings.
Data Backup: If you use device-level backup services (such as iCloud or Google Drive), your app data may be included in those backups according to your device's backup settings.
5. Third-Party Services
Gojuon Master uses the following third-party services and libraries:
5.1 Google Fonts
The app uses Google Fonts for displaying Japanese characters. Font files may be downloaded from Google's servers when the app is first launched or when specific fonts are needed.
5.2 Google ML Kit (Digital Ink Recognition)
For the character writing feature, the app uses Google ML Kit's Digital Ink Recognition, which processes handwriting recognition locally on your device. No handwriting data is sent to external servers.
5.3 Flutter Framework
The app is built using Flutter, Google's UI framework. Flutter itself does not collect user data unless explicitly configured to do so, which we have not done.
Note: These services do not access your personal information or game progress data.
6. Children's Privacy
Gojuon Master is suitable for users of all ages, including children. We do not knowingly collect any personal information from children or any other users. Since all data is stored locally on the device and no information is transmitted to our servers, the app is safe for children to use under parental supervision.
Parents and guardians should be aware that if they allow children to use devices with backup services enabled (iCloud, Google Drive), app data may be included in those backups.
7. Your Rights and Choices
7.1 Data Control
You have complete control over your data:
- Reset Progress: Clear your progress within the app settings (if available)
- Delete All Data: Uninstall the app to completely remove all stored data
- Clear App Data: Use your device's settings to clear app data manually
7.2 No Account Required
Gojuon Master does not require creating an account or providing any personal information to use the app's features.
8. International Users
Since Gojuon Master stores all data locally on your device and does not transmit data to servers, there are no international data transfer concerns. The app can be used safely from any location.
9. Changes to This Privacy Policy
We may update this Privacy Policy from time to time to reflect changes in the app or legal requirements. When we make changes, we will update the "Last Updated" date at the top of this policy.
If we make material changes to how we handle user data, we will notify users through the app or through the app store listing. Continued use of the app after changes indicates acceptance of the updated policy.
10. No Warranty
While we strive to protect your data through local storage, we cannot guarantee absolute security. Users are responsible for maintaining the security of their devices and backup services.
11. Compliance
This Privacy Policy is designed to comply with major privacy regulations including:
- General Data Protection Regulation (GDPR) - European Union
- California Consumer Privacy Act (CCPA) - United States
- Children's Online Privacy Protection Act (COPPA) - United States
- Other applicable privacy laws and regulations
12. Contact Us
If you have any questions, concerns, or suggestions about this Privacy Policy or our data practices, please contact us:
Email: support@gojuonmaster.app
Support Page: Gojuon Master Support
We will respond to your inquiries within 7 business days.
13. Summary
- ✅ All your data stays on your device
- ✅ We don't collect or transmit your personal information
- ✅ No tracking or analytics
- ✅ No account or login required
- ✅ Safe for all ages
- ✅ You can delete all data by uninstalling the app
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