Privacy Policy

Hi! We are Yibai Online (Yunhe District Yibai Network Convenience Store). We care about your privacy and want to be as clear as possible about how our apps (like Hanzi Writer) handle your data.

1. Information We Collect

We believe in data minimization. We only collect information that is necessary for the app's functionality.

• Personal Information: If you create an account to sync progress, we collect your email address and authentication details (User ID).
• Usage Data: We may collect anonymous data about how you use the app (e.g., features used, session duration) to help us improve the experience.
• Device Information: We may collect information about your device (e.g., model, OS version) and unique device identifiers (for advertising or crash reporting).
• Crash Logs: If the app crashes, we collect anonymous logs to help us fix the bug.

2. How We Use Your Data

• To provide and maintain our Service (e.g., syncing your progress).
• To improve our Service (e.g., fixing crashes, optimizing features).
• To show relevant advertisements (in the free version).

3. Third-Party Services

We use trusted third-party services. These providers have their own privacy policies addressing how they use such information.

• Authentication: Google Firebase (for secure login).
• Payments: RevenueCat (handling subscriptions via Apple App Store & Google Play).
• Advertising: Google AdMob.
• Analytics & Crash Reporting: Google Firebase / Crashlytics.

4. Data Deletion (Your Rights)

You have the right to delete your account and all associated data at any time.

• In-App: You can find a "Delete Account" option in the app's Settings menu.
• By Email: You can also request data deletion by emailing us at [email protected]. We will process your request within 30 days.

5. Children’s Privacy

We do not knowingly collect personally identifiable information from children under 13. In the case we discover that a child under 13 has provided us with personal information, we immediately delete this from our servers. If you are a parent or guardian and you are aware that your child has provided us with personal information, please contact us so that we will be able to do necessary actions.

6. Contact Us

If you have any questions or suggestions about our Privacy Policy, do not hesitate to contact us at [email protected].