Privacy Policy

Effective Date: January 30, 2026

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

1. Information We Collect

1.1 Account Information

When you sign in using Google Sign-In, we collect:

• Your email address
• Your display name
• Your profile picture URL (if available)

1.2 Learning Data

To provide personalized learning experiences, we collect:

• Vocabulary progress and quiz scores
• Learning streaks and completion status
• Review history and spaced repetition data
• Time spent on lessons

1.3 Device Information

For app functionality and troubleshooting, we may collect:

• Device type and operating system version
• App version
• Crash logs and error reports

2. How We Use Your Information

We use your information to:

• Provide and maintain the Daily English Guru service
• Track your learning progress across devices
• Personalize your learning experience
• Send you learning reminders (if enabled)
• Improve our app and develop new features
• Respond to your support requests

3. Data Storage and Security

Your data is stored securely using Google Firebase services. We implement industry-standard security measures including:

• Encryption of data in transit (HTTPS/TLS)
• Secure authentication via Google Sign-In
• Access controls and authentication for our backend systems

4. Third-Party Services

We use the following third-party services:

• Google Firebase: For authentication, database, and hosting
• Google Sign-In: For secure account authentication

These services have their own privacy policies governing data handling.

5. Data Sharing

We do not sell, trade, or rent your personal information to third parties. We may share data only:

• With your consent
• To comply with legal obligations
• To protect our rights and safety

6. Your Rights

You have the right to:

• Access: Request a copy of your personal data
• Correction: Update or correct your information
• Deletion: Request deletion of your account and data
• Portability: Receive your data in a portable format

To exercise these rights, contact us at the email below.

7. Data Retention

We retain your data for as long as your account is active. If you delete your account, we will delete your personal data within 30 days, except where retention is required by law.

8. Children's Privacy

Daily English Guru is designed for users aged 13 and older. We do not knowingly collect personal information from children under 13. If you believe a child has provided us with personal data, please contact us immediately.

9. Changes to This Policy

We may update this Privacy Policy from time to time. We will notify you of significant changes by posting the new policy in the app or sending you a notification. Your continued use of the app after changes constitutes acceptance of the updated policy.