Welcome to Yocha (the "App"), a Chinese grammar learning application developed by Ninchanese ("we," "us," or "our"). We are committed to protecting your privacy and ensuring transparency about how we handle your information.
- What information we collect
- How we use that information
- Your rights regarding your data
- How to contact us with privacy concerns
By using Yocha, you agree to the collection and use of information in accordance with this policy.
Information We Collect
1. Information You Provide
Account Data:
- We do NOT require account creation or login
- We do NOT collect names, email addresses, or passwords through the app
- All progress is stored locally on your device
Purchase Information:
- When you make an in-app purchase (Yocha Pro), payment information is processed by:
- Google Play Store (for Android)
- RevenueCat (our payment processor)
- We do NOT store credit card information or payment details
2. Automatically Collected Information
Usage Analytics:
We use Firebase Analytics (Google Analytics for Firebase) to understand how users interact with the app:
- Events tracked:
- Lessons viewed and completed
- Practice sessions started/completed
- Features used (Arcade, Gymbank, etc.)
- In-app purchase events
- App opens and session duration
- Language preferences selected
- Device information:
- Device model and manufacturer
- Operating system version (Android)
- App version
- General location (country/region, NOT precise location)
- Device language setting
Important: Firebase Analytics does NOT collect personally identifiable information. All data is aggregated and anonymized.
Purchase & Subscription Data:
We use RevenueCat to manage in-app purchases:
- Purchase status (free vs. Pro)
- Purchase timestamps
- Product identifiers
- Anonymous user IDs
- Device identifiers (for purchase restoration)
3. Information We Do NOT Collect
- Personal names or email addresses (unless you contact us directly)
- Precise location data (GPS coordinates)
- Contact lists or phone numbers
- Photos, camera, or microphone access
- Data from other apps on your device
How We Use Your Information
We use the collected information for the following purposes:
1. App Functionality
- Save your progress, bookmarks, and settings locally on your device
- Sync purchase status across devices
- Provide personalized learning experience
2. Analytics & Improvement
- Understand which features are most used
- Identify bugs and performance issues
- Improve app stability and user experience
- Make data-driven decisions about new features
3. Business Operations
- Process purchases and manage subscriptions
- Prevent fraud and abuse
- Comply with legal obligations
4. Communication
- Respond to support inquiries (only if you contact us)
- Send important service announcements (rare)
Data Sharing & Third Parties
We share data with the following third-party services:
1. Firebase Analytics (Google)
- Purpose: App analytics and crash reporting
- Data shared: Usage events, device information (anonymized)
- Privacy Policy: https://firebase.google.com/support/privacy
2. RevenueCat
- Purpose: In-app purchase management
- Data shared: Purchase status, product IDs, anonymous user IDs
- Privacy Policy: https://www.revenuecat.com/privacy
3. Google Play Store
- Purpose: App distribution and payment processing
- Data shared: Purchase information (handled by Google)
- Privacy Policy: https://policies.google.com/privacy
We do NOT:
- Sell your data to third parties
- Share data with advertisers (we have no ads)
- Use data for marketing purposes beyond analytics
Data Storage & Security
- Local Storage: Your progress, bookmarks, and settings are stored locally on your device using AsyncStorage
- Cloud Storage: Purchase status is stored by RevenueCat to enable restoration across devices
- Security: We use industry-standard encryption (HTTPS) for all data transmission
- Retention: Analytics data is retained according to Firebase's default retention policies (14 months)
Your Rights & Choices
Data Access & Deletion
Since most data is stored locally on your device, you have full control:
- Delete local data: Uninstall the app or clear app data from device settings
- Purchase data: Contact RevenueCat or us to request deletion of purchase records
- Analytics data: Firebase Analytics data is anonymized and cannot be linked back to you
Opt-Out Options
- Analytics: You cannot currently opt-out of Firebase Analytics, but all data is anonymized
- Future updates may include an opt-out option
European Economic Area (EEA) Users
If you are in the EEA, you have additional rights under GDPR:
- Right to access your data
- Right to rectification
- Right to erasure ("right to be forgotten")
- Right to restrict processing
- Right to data portability
- Right to object to processing
- Right to lodge a complaint with a supervisory authority
To exercise these rights, contact us at: hello@ninchanese.com
Children's Privacy
Yocha is suitable for all ages. We do not knowingly collect personal information from children under 13 without parental consent.
If you believe we have inadvertently collected information from a child under 13, please contact us immediately, and we will delete the information.
International Data Transfers
Your information may be transferred to and processed in countries other than your own, including the United States, where our service providers (Firebase, RevenueCat) are located.
We ensure that such transfers comply with applicable data protection laws.
Changes to This Privacy Policy
We may update this Privacy Policy from time to time. Changes will be posted on this page with an updated "Last Updated" date.
Significant changes will be communicated through:
- App update notifications
- In-app announcements
- Email (if you've contacted us)
Continued use of the app after changes constitutes acceptance of the updated policy.
Contact Us
If you have questions, concerns, or requests regarding this Privacy Policy or your data, please contact us:
- Email: hello@ninchanese.com
- Website: https://ninchanese.com
- App: Yocha (Chinese Grammar App)
We will respond to your inquiry within 30 days.
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Summary (TL;DR)
- ✅ No account required – All progress stored locally
- ✅ Minimal data collection – Only anonymized analytics
- ✅ No ads or tracking – We don't sell your data
- ✅ Secure purchases – Handled by Google Play and RevenueCat
- ✅ Your control – Uninstall anytime to delete local data