Privacy Policy
Your privacy is important to us. This Privacy Policy explains how Riichi Sensei collects, uses, and protects your information when you use our mobile application for learning Riichi Mahjong.
1. Information We Collect
Analytics and Usage Data
We collect anonymous usage analytics through Google Analytics to improve app performance and user experience. This includes:
- App usage patterns and feature interactions
- Device information (type, OS version, app version)
- Performance metrics and crash reports
- General location (country/region level only)
Personal Information
Riichi Sensei does not collect, store, or process any personal information such as:
- Names, email addresses, or contact information
- Photos, videos, or personal media
- Location data beyond country/region
- Social media profiles or accounts
- Payment information (app is free)
2. How We Use Information
The limited data we collect is used exclusively for:
- App Improvement: Understanding which features are most helpful
- Bug Fixing: Identifying and resolving technical issues
- Performance Optimization: Ensuring smooth app operation
- Feature Development: Prioritizing new educational content
We never sell, rent, or share your data with third parties for marketing purposes.
3. Data Storage and Security
Local Storage
Your learning progress and app preferences are stored locally on your device using:
- SQLite database for offline functionality
- Device-specific storage (not backed up to cloud)
- No personal identifiers attached to stored data
Third-Party Services
We use Google Analytics for anonymous usage analytics. This service:
- Complies with GDPR and other privacy regulations
- Provides user consent mechanisms
- Allows you to opt-out of data collection
- Uses industry-standard encryption
4. Your Privacy Rights
| Right | Description | How to Exercise |
|---|---|---|
| Opt-Out | Disable analytics collection | App Settings → Privacy → Analytics Off |
| Data Deletion | Remove all local app data | Delete app or use device settings |
| Transparency | Know what data is collected | Review this policy and in-app notices |
| Contact | Ask questions about privacy | Email support team |
5. Children's Privacy
Riichi Sensei is suitable for users of all ages. We do not knowingly collect personal information from children under 13. Since we don't collect personal information from any users, this provides additional protection for younger users.
Parents can safely allow children to use the app for educational purposes, as all content is appropriate and no personal data is collected.
6. International Users
Riichi Sensei is available worldwide and complies with major privacy regulations:
- GDPR (European Union): Full compliance with user consent and data rights
- CCPA (California): Transparent data practices and user control
- PIPEDA (Canada): Privacy by design principles
- Other Jurisdictions: Commitment to local privacy laws
7. Updates to This Policy
We may update this Privacy Policy to reflect changes in our practices or legal requirements. When we do:
- The "Last Updated" date will be revised
- Significant changes will be communicated through app updates
- You'll be notified if new data collection is introduced
- Continued use of the app constitutes acceptance of updates
8. App Store Compliance
This Privacy Policy meets the requirements of major app stores:
- Apple App Store: Complies with App Store Review Guidelines
- Google Play Store: Meets Google Play Developer Policy
- Data Safety: Accurate disclosure of data practices
- Transparency: Clear communication about data use
contact_mail Contact Us
If you have any questions about this Privacy Policy or our data practices, please contact us:
Email: support@nettlepie.com
Response Time: We typically respond within 48 hours
Subject: Please include "Privacy Policy" in your email subject