Privacy Policy

1. Introduction

EasTongue ("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 AI-powered language learning platform, including our website, mobile applications, and related services (collectively, the "Service").

2. Information We Collect

2.1 Personal Information

• Account information (email address, username, password)
• Profile information (native language, target learning language, learning preferences)
• Subscription and billing information
• Contact information for customer support

2.2 Learning Data

• Text inputs and translations
• Learning progress and performance analytics
• AI conversation histories and interaction patterns
• Scene-based learning activity data

2.3 Technical Information

• IP address and device information
• Browser type and operating system
• Usage patterns and feature interactions
• Cookies and similar tracking technologies

3. How We Use Your Information

• Provide and improve our Service: Process your learning data to deliver AI-powered language learning experiences
• AI Training and Enhancement: Use anonymized conversation data to improve our AI models and learning algorithms
• Progress Tracking: Monitor your learning progress
• Communication: Send service updates and customer support responses
• Security: Protect against fraud, abuse, and security threats
• Legal Compliance: Comply with applicable laws and regulations

4. Information Sharing and Disclosure

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

• Service Providers: Third-party vendors who assist in operating our Service (cloud hosting, payment processing, analytics)
• AI Partners: Anonymized data may be shared with AI technology partners to improve language processing capabilities
• Legal Requirements: When required by law, court order, or government request
• Business Transfers: In connection with mergers, acquisitions, or asset sales
• Consent: With your explicit consent for specific purposes

5. Voice Data Processing

Our platform uses voice technology in the following ways:

• Voice recordings are processed locally in your browser using Web Speech Recognition to convert speech to text
• Audio data is temporarily stored in your browser's memory for playback purposes and automatically deleted when you leave the page
• Only the converted text (not audio files) is sent to our AI systems for conversation practice and translation services
• We use Text-to-Speech technology to generate audio responses from our AI, which is processed locally in your browser
• No voice recordings are permanently stored on our servers or used for AI model training

6. Data Security

We implement robust security measures including encryption, secure data centers, regular security audits, and access controls. However, no method of transmission over the internet is 100% secure, and we cannot guarantee absolute security.

7. Your Rights and Choices

• Access: Request access to your personal information
• Correction: Update or correct your information
• Deletion: Request deletion of your account and associated data
• Portability: Export your learning progress data
• Opt-out: Unsubscribe from marketing communications

8. International Data Transfers

Your information may be transferred and processed in countries other than your own. We ensure appropriate safeguards are in place to protect your information in accordance with this Privacy Policy and applicable laws.

9. Children's Privacy

Our Service is not intended for children under 13 years of age. We do not knowingly collect personal information from children under 13. If you believe we have collected information from a child under 13, please contact us immediately.

10. 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 on this page and updating the "Effective Date" above.

11. Contact Information

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