Privacy Policy

Yunhe Qu Yibai Wangluo Bianlidian ("Yibai Network", "we", "us", or "our") is committed to protecting your privacy. This Privacy Policy explains how we handle information in our mobile applications, including Hanzi Writer.

1. Information Collection and Use

Our core philosophy is to minimize data collection. For the majority of our features:

• No Personal Data: We do not require you to provide personal information to use the basic features of our apps.
• Local Storage: Your practice progress, custom themes, and learning history are stored locally on your device. We do not have access to this data.
• Account Information: If you choose to create an account for cloud synchronization or premium features, we collect your email address and basic profile information provided by your chosen login provider (e.g., Google or Apple).

2. Third-Party Services

We use a limited number of trusted third-party services to provide essential app functionality:

• Authentication: We use Supabase to manage user accounts and secure logins.
• Payments: In-app purchases and subscriptions are processed through Apple App Store or Google Play Store via RevenueCat. We do not store your credit card information.
• Advertisements: We may use Google AdMob to display advertisements to non-premium users. These providers may use device identifiers to serve personalized ads.

3. Data Security

We implement industry-standard security measures to protect your information. However, please remember that no method of transmission over the internet or electronic storage is 100% secure.

4. Children's Privacy

Our services do not address anyone under the age of 13. We do not knowingly collect personally identifiable information from children under 13.

5. Contact Us

If you have any questions or suggestions about our Privacy Policy, do not hesitate to contact us at:
support@yibaiwangluo.net