1. Overview

VocabMaster ("the App") respects your privacy. This Privacy Policy explains how we collect, use, and protect your personal information. By using the App, you agree to the terms outlined in this policy.

2. Information We Collect

• Account Data: Email address and display name (when signed in)
• Learning Progress: Learned words, quiz history, and bookmarks — stored locally on your device
• Usage Data: Anonymous app usage statistics used to improve service quality

3. How We Use Your Information

We use the collected information to:

• Provide and maintain the App's functionality
• Save and sync your learning progress
• Improve app features and user experience

We do not sell, rent, or share your personal data with third parties, except as required by law.

4. Local Storage

Your learning progress (learned words, quiz records, bookmarks) is stored by default in your device's local storage (localStorage). Clearing your browser data will permanently delete these records.

5. Data Security

We implement reasonable technical measures to protect your data, including encrypted transmission (HTTPS) and secure account authentication. However, no method of transmission over the internet can be guaranteed to be 100% secure.

6. Your Rights

• You may delete your account at any time in Settings — all associated data will be removed
• You may clear local storage to delete learning records stored on your device
• To access or correct your personal data, please contact us using the information below

7. Children's Privacy

The App is not directed at children under the age of 13. We do not knowingly collect personal information from minors.

8. Changes to This Policy

We may update this Privacy Policy from time to time. We will notify you within the App and update the "Last updated" date at the top of this page. Continued use of the App constitutes your acceptance of the updated policy.