Privacy Policy

Effective Date: 2026-02-20

SmartVocab ("we", "our", or "us") respects your privacy and is committed to protecting your personal data. This Privacy Policy explains how we collect, use, and safeguard your information when you use our mobile application.

1. Information We Collect

We may collect the following types of information:

1.1 Account Information

• Email address (used for account registration and login)
• Authentication data (managed securely via Supabase)

1.2 Usage Data

• Learning progress (e.g., vocabulary progress, listening activity)
• App interaction data (e.g., feature usage, session activity)

1.3 Device Information

• Device type and operating system
• App version and basic diagnostic data

2. How We Use Your Information

We use your information to:

• Provide and maintain the app’s core functionality
• Authenticate users and manage accounts
• Store and sync your learning progress
• Improve app performance and user experience
• Detect and prevent abuse or unauthorized access

3. Authentication and Third-Party Services

We use Supabase as our backend service for authentication and data storage.

The app may optionally support:

• Apple Sign-In
• Google Sign-In

These services are used solely for authentication purposes.

4. Data Storage and Security

• Your data is securely stored using Supabase infrastructure.
• We implement reasonable technical and organizational measures to protect your data.
• Passwords are never stored in plain text and are handled by Supabase authentication services.

5. Data Sharing

We do not sell, rent, or trade your personal data.

We may share data only in the following cases:

• With service providers (e.g., Supabase) strictly for app functionality
• If required by law or legal process

6. Data Retention

We retain your data as long as your account is active.

You may request deletion of your account and associated data at any time.

7. Your Rights

Depending on your jurisdiction, you may have the right to:

• Access your personal data
• Request correction or deletion
• Withdraw consent

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

8. Children’s Privacy

This app is not intended for children under 13 (or the minimum age in your jurisdiction). We do not knowingly collect data from children.

9. Changes to This Policy

We may update this Privacy Policy from time to time. Changes will be posted on this page with an updated effective date.

10. Contact Us

If you have any questions about this Privacy Policy, please contact us:

Email: support@kjtaitech.com

11. International Users

Your data may be processed and stored in countries outside your own. By using the app, you consent to such transfers.