Privacy Policy

Effective Date: November 18, 2025

Quick Summary

• Data Collected: Account info (email, name), uploads & generated study sets, usage & diagnostics, cookies/local storage.
• Primary Uses: Provide and secure the Service, generate study materials, improve performance, communicate important updates, meet legal obligations.
• Sharing: Only with core providers (Supabase, OpenAI, Google OAuth). We do not sell your personal data.
• AI Processing: Your uploads are transformed into flashcards; private uploads are not used to train our own models.
• Retention: Account data while active (plus up to 90 days post‑deletion), study sets until you remove them, logs up to 2 years, backups up to 30 days.
• Your Rights: Access, correct, export, delete, and (where applicable) object or restrict processing. Email: support@classnerd.org.
• Security: Industry‑standard safeguards; no method is 100% secure.
• Children: Not directed to users under 13.
• Changes: We will notify of material updates; continued use means acceptance.

This Privacy Policy explains how ClassNerd ("we", "our", or "us"), operating the Flashcard application, collects, uses, and shares information when you use our website and services (the "Service"). By using the Service, you consent to the practices described in this policy.

1. Information We Collect

• Account Information. Email address, name, and authentication data when you sign up using email/password or Google.
• Uploads & Content. Files and text you provide to generate flashcards (e.g., PDFs), plus the resulting study sets and study data.
• Usage Data. App interactions, device information, approximate location, and diagnostics to maintain and improve the Service.
• Cookies & Local Storage. Used for authentication, preferences, security, and performance.

2. How We Use Information

• Provide, operate, and maintain the Service (e.g., authentication, storage, study set management).
• Generate study materials using AI based on your inputs and uploads.
• Protect the Service from abuse, troubleshoot, and improve performance.
• Communicate with you about your account, security, and important changes.
• Comply with legal obligations and enforce our Terms of Service.

3. Legal Bases (EEA/UK)

Where applicable, we process data under these legal bases: contract (to provide the Service), legitimate interests (to improve and secure the Service), and consent (where required, e.g., certain cookies).

4. Sharing & Transfers

We share information with trusted service providers to deliver core features:

• Supabase for authentication, database, and storage.
• OpenAI to transform your inputs into flashcards and study materials.
• Google for OAuth sign‑in (if chosen).

We may also share data to comply with law, respond to legal requests, prevent harm, or as part of a business transaction. Data may be transferred to, and processed in, countries other than where you live.

5. Data Retention

We retain your information for as long as your account is active or as needed to provide the Service, comply with legal obligations, resolve disputes, and enforce our agreements. Specifically:

• Account information is retained while your account is active and for up to 90 days after deletion.
• Study materials and flashcards are retained until you delete them or close your account.
• Usage data and logs may be retained for up to 2 years for security and analytical purposes.
• Backup copies may persist for up to 30 days after deletion.

6. Security

We use industry‑standard practices to help protect your information. No method of transmission or storage is 100% secure, and we cannot guarantee absolute security.

7. Your Rights

• Access, correct, or export certain data in your account.
• Delete your account or request deletion of your data (subject to legal requirements).
• Object to or restrict certain processing where applicable.

To exercise rights, contact us at support@classnerd.org.

8. Children’s Privacy

The Service is not directed to children under 13, and we do not knowingly collect data from them.

9. Cookies & Tracking

We use cookies and similar technologies for session management, preferences, analytics, and security. You can control cookies via your browser settings; some features may not function without them.

10. AI Processing

• Your inputs and uploads may be sent to AI providers to generate study materials.
• We do not use your private uploads to train our own models.
• AI outputs may be inaccurate; always review generated content.

11. Changes to this Policy

We may update this Privacy Policy from time to time. If changes are material, we will notify you (e.g., via email or in‑app). Continued use after changes means you accept the updated Policy.

12. Governing Law

This Privacy Policy and any disputes arising from it shall be governed by and construed in accordance with the laws of the jurisdiction in which we operate, without regard to its conflict of law provisions.

13. Contact Information

If you have any questions, concerns, or requests regarding this Privacy Policy or our data practices, please contact us:

• Email: support@classnerd.org
• Service Name: ClassNerd Flashcard
• Response Time: We aim to respond to all inquiries within 48 hours.

For data protection inquiries specifically related to GDPR or other privacy regulations, please include "Privacy Request" in your email subject line.