Privacy Policy

Effective Date: 2025/07

Introduction

This Privacy Policy describes how we collect, use, and share information when you use our foreign language learning mobile application (Enjoy Echo). We are committed to protecting your privacy and ensuring you understand how your information is handled.

Developer Contact Information:

• Developer: Li An
• Email: me@baizhiheizi.com

Information We Collect

Information You Provide

• Account Information: Username, email address, and password when you create an account
• Learning Progress: Your study sessions, completed lessons, vocabulary progress, and learning preferences
• User Content: Any notes, bookmarks, or custom content you create within the App

Information Automatically Collected

• Usage Data: How you interact with the App, features used, time spent, and navigation patterns
• Device Information: Device type, operating system version, unique device identifiers, and mobile network information
• Performance Data: App crashes, performance metrics, and error logs to improve App functionality

Third-Party Content

• YouTube Integration: When you access YouTube videos through our App, you are subject to YouTube's Terms of Service and Google's Privacy Policy. We do not collect or store YouTube video content directly.

How We Use Your Information

We use the collected information to:

• Provide and maintain the App's language learning services
• Personalize your learning experience and track your progress
• Improve App functionality and user experience
• Send important updates about the App (with your consent for promotional communications)
• Provide customer support and respond to your inquiries
• Ensure App security and prevent fraud or abuse

Information Sharing and Disclosure

We do not sell, trade, or rent your personal information to third parties. We may share information in the following circumstances:

Third-Party Services

• YouTube/Google Services: When you access YouTube content, your interaction is governed by Google's privacy policies
• Analytics Services: We may use analytics tools to understand App usage (with anonymized data when possible)
• Cloud Storage: Your progress data may be stored securely in cloud services to enable cross-device synchronization

Legal Requirements

We may disclose information if required by law, court order, or to protect our rights and safety.

Data Security

We implement reasonable security measures to protect your information, including:

• Encryption of sensitive data in transit and at rest
• Regular security assessments
• Limited access to personal information by authorized personnel only

However, no method of transmission over the internet is 100% secure, and we cannot guarantee absolute security.

Children's Privacy

Our App is not intended for children under 13 years of age. We do not knowingly collect personal information from children under 13. If you are a parent or guardian and believe your child has provided us with personal information, please contact us immediately.

International Users

European Union Users (GDPR)

If you are located in the EU, you have additional rights under the General Data Protection Regulation (GDPR):

• Right to Access: Request a copy of your personal data
• Right to Rectification: Correct inaccurate personal data
• Right to Erasure: Request deletion of your personal data
• Right to Data Portability: Receive your data in a structured, machine-readable format
• Right to Object: Object to processing of your personal data for direct marketing

Data Retention

We retain your information only as long as necessary to provide our services or as required by law. You can request deletion of your account and associated data at any time.

Third-Party Links and Services

Our App may contain links to third-party websites or services, including YouTube. We are not responsible for the privacy practices of these third parties. We encourage you to review their privacy policies.

Changes to This Privacy Policy

We may update this Privacy Policy from time to time. We will notify you of any material changes by:

• Posting the new Privacy Policy in the App
• Sending an email notification (if you have provided an email address)
• Providing an in-app notification

Your continued use of the App after changes become effective constitutes acceptance of the revised Privacy Policy.

Your Rights and Choices

You can:

• Access and update your account information within the App
• Delete your account and associated data by contacting us
• Opt out of promotional communications
• Control certain data collection through your device settings

Contact Us

If you have any questions about this Privacy Policy or our privacy practices, please contact us at:

Email: me@baizhiheizi.com Response Time: We aim to respond to privacy inquiries within 72 hours.

App Store Compliance

This App complies with:

• Google Play Store Developer Policy
• Apple App Store Review Guidelines
• Applicable data protection regulations in your jurisdiction

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This Privacy Policy was last updated on [Insert Date]. Please review it periodically for any changes.