Privacy Policy

HappyPinyin ("we," "our," or "us") is committed to protecting your privacy. This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you use our website and services.

Information We Collect

Information You Provide

• Account Information: When you sign in with Google, we receive your name, email address, and profile picture from Google.
• Learning Data: Your practice sessions, progress, scores, and learning statistics are stored to provide personalized learning experiences.

Information Collected Automatically

• Usage Data: We collect information about how you interact with our service, including pages visited, features used, and time spent on the platform.
• Device Information: Basic information about your device and browser to ensure compatibility and improve our service.

How We Use Your Information

We use the information we collect to:

• Provide and maintain our learning platform
• Track your learning progress and personalize your experience
• Implement spaced repetition algorithms to optimize your learning
• Improve and develop new features
• Communicate with you about updates or changes to the service
• Analyze usage patterns to improve the platform

Data Storage and Security

Your data is stored securely on Vercel's infrastructure. We implement appropriate technical and organizational measures to protect your personal information against unauthorized access, alteration, disclosure, or destruction.

While we strive to protect your personal information, no method of transmission over the Internet or electronic storage is 100% secure. We cannot guarantee absolute security.

Third-Party Services

We use the following third-party services:

• Google OAuth: For authentication. Google's privacy policy applies to data collected during sign-in.
• Vercel: For hosting and database services.
• Vercel Analytics: For anonymous usage analytics to improve our service.

Data Retention

We retain your personal information for as long as your account is active or as needed to provide you services. You can request deletion of your account and associated data at any time by contacting us.

Your Rights

You have the right to:

• Access the personal information we hold about you
• Request correction of inaccurate data
• Request deletion of your data
• Object to processing of your data
• Request data portability

Children's Privacy

HappyPinyin is designed to be educational and appropriate for learners of all ages. However, we do not knowingly collect personal information from children under 13 without parental consent. If you believe we have collected information from a child under 13, please contact us immediately.

Cookies

We use essential cookies to maintain your session and remember your preferences. These cookies are necessary for the platform to function properly. We do not use advertising or tracking cookies.

Changes to This Policy

We may update this Privacy Policy from time to time. We will notify you of any changes by posting the new Privacy Policy on this page and updating the "Last updated" date.