Privacy Policy

Last updated: May 26, 2026

GradeEngine ("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 mobile application and related services.

1. Information We Collect

We collect information you provide directly to us, including:

• Account Information: Name, email address, and school/grade level when you register.
• Photos and Submissions: Images of homework and exam papers you upload for grading. These are processed by our AI engine and are not stored beyond the grading session unless you opt in to a saved-work feature.
• Usage Data: App interaction data, session duration, features used, and performance analytics.
• Device Information: Device type, OS version, and unique device identifiers for analytics and push notifications.

2. How We Use Your Information

We use the information we collect to:

• Provide, maintain, and improve our AI grading services.
• Generate personalized learning insights and progress reports.
• Send you important updates, reminders, and educational content.
• Monitor app performance and fix technical issues.
• Comply with legal obligations.

3. Data Storage and Security

All photo submissions are processed in real time. Graded results and progress data are stored on secure cloud servers. We use industry-standard encryption (TLS/SSL) for data in transit and AES-256 encryption for data at rest.

4. Children's Privacy

GradeEngine is designed for students of all ages, including minors. We collect only the minimum data necessary to provide the service. Parental consent is required for users under 18 in certain jurisdictions. Parents or guardians may contact us to review, update, or delete their child's data.

5. Data Sharing

We do not sell your personal data. We may share data with:

• Service providers who help us operate (cloud hosting, analytics, push notifications).
• Legal authorities when required by applicable law.

6. Your Rights

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

• Access, correct, or delete your personal data.
• Object to or restrict certain processing.
• Data portability.
• Withdraw consent at any time.

To exercise these rights, contact us at service@yk-global.com.

7. Cookies and Tracking

We use minimal session cookies for app authentication. Analytics data is anonymized and aggregated. We do not use third-party advertising trackers.

8. Changes to This Policy

We may update this Privacy Policy from time to time. We will notify you of material changes through the app or via email. Continued use after changes constitutes acceptance.

9. Contact Us

If you have any questions about this Privacy Policy, please contact us at:
service@yk-global.com