Privacy Policy

Last updated: December 7, 2025

1. Introduction

Yumei ("we", "our", or "us") is committed to protecting your privacy. This Privacy Policy explains how we collect, use, and safeguard your information.

2. Information We Collect

Information You Provide

• Account information (name, email, password)
• Profile information
• Audio recordings submitted for pronunciation assessment
• Class and assignment submissions

Information Collected Automatically

• Device information
• Usage data and analytics
• Log data

3. How We Use Your Information

We use your information to:

• Provide and improve the Service
• Analyze pronunciation and provide feedback
• Communicate with you about your account
• Ensure security and prevent fraud

4. Data Storage and Security

• Your data is stored securely on AWS infrastructure
• Audio submissions are processed and stored with encryption
• We implement industry-standard security measures

5. Data Retention

• Account data is retained while your account is active
• Audio submissions may be retained to improve our models
• You may request deletion of your data at any time

6. Sharing of Information

We do not sell your personal information. We may share data with:

• Service providers who assist in operating our platform
• Legal authorities when required by law
• Educational institutions (for school accounts) as necessary

7. Children's Privacy

For users under 13, we require parental or school consent. We comply with COPPA and other applicable regulations.

8. Your Rights

You have the right to:

• Access your personal data
• Correct inaccurate data
• Request deletion of your data
• Export your data

9. Cookies

We use essential cookies to operate the Service. We do not use third-party tracking cookies.

10. Changes to This Policy

We may update this Privacy Policy from time to time. We will notify you of significant changes.

11. Contact Us

For privacy-related inquiries, contact us at privacy@yumei.ai.