Privacy Policy for AI English Tutor

1. Introduction

Welcome to AI English Tutor. We are committed to protecting your privacy and ensuring the security of your personal information. This Privacy Policy explains how we collect, use, store, and protect your data when you use our mobile application.

2. Information We Collect

2.1 Personal Information

• User ID: A unique identifier automatically generated when you first use the app
• Subscription Information: Purchase history, subscription status, and payment information
• Usage Data: App usage statistics, feature interactions, and session duration

2.2 Audio Data (Microphone Permission)

• Audio Recording: Temporarily recorded during voice conversation practice
• Processing: Audio data is processed in real-time and is NOT permanently stored
• Purpose: Used solely for English pronunciation feedback
• User Control: You can deny microphone permission and use text-based conversation instead

We do NOT:

• Store your voice recordings permanently
• Share your audio data with unauthorized third parties
• Use your voice data for purposes other than providing the service

3. How We Use Your Information

• Provide AI-powered English conversation practice
• Process voice input for pronunciation feedback
• Manage your subscription and VIP access
• Personalize your learning experience
• Improve app features and fix bugs

4. Data Storage and Security

4.1 Audio Data

• Temporary Processing: Processed in real-time during voice conversations
• No Long-term Storage: Automatically deleted after processing
• Encrypted Transmission: All audio data transmitted via secure HTTPS

4.2 User Data

• Local Storage: User preferences stored locally on your device
• Subscription Data: Managed securely through RevenueCat and Google Play
• Security Measures: Industry-standard encryption and security protocols

5. Third-Party Services

• Google Play Services: In-app purchases and subscription management
• RevenueCat: Subscription management and tracking
• AI Processing Services: Natural language processing (temporary data only)

6. Your Rights and Choices

• Access Data: View your subscription status and usage data in the app
• Delete Account: Contact us to request account deletion
• Revoke Permissions: Disable microphone access in device settings anytime
• Optional Features: Voice conversation is optional; text-based chat always available

7. Children's Privacy

AI English Tutor is designed for users aged 13 and above. We do not knowingly collect personal information from children under 13.

8. Data Sharing

We do NOT sell, trade, or rent your personal information to third parties.

We may share your information only with:

• Service providers necessary for app functionality (Google Play, RevenueCat)
• Law enforcement when required by law

9. Changes to This Policy

We may update this Privacy Policy from time to time. Significant changes will be communicated through in-app notifications.

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