Privacy Policy

Last Updated: January 23, 2026

AURUM (hereinafter referred to as “the App”) respects your privacy and is committed to protecting your personal information. This Privacy Policy explains how we collect, use, and manage information in the App.

1. Information Collection and Use

The App collects and uses the following information to provide and improve our services.

1-1. Device Information and Identifiers

• Information Collected: Device ID (Terminal ID), device model, OS version.
• Purpose:
  • For user authentication and security.
  • To prevent fraudulent use of the service.
  • To improve app quality and analyze crash reports.

1-2. User Content (Questions and Inputs)

• Information Collected: Text and images (photos) sent by the user, and associated chat history.
• Purpose:
  • To utilize AI for problem explanation and answer generation.
  • To improve service quality (e.g., enhancing AI accuracy).
  • Important: Chat history and created problem sets are primarily stored locally on your device.

1-3. Usage Data

• Information Collected: Screen viewing history, interaction with buttons, time spent on the app, crash logs.
• Purpose:
  • To improve app functionality and optimize UI/UX.
  • For marketing analysis and ad optimization.

1-4. Purchase Information

• Information Collected: Subscription status, purchase history, receipt information.
• Purpose: To provide premium features and manage subscriptions.

2. Third-Party Data Sharing

The App uses the following third-party services to facilitate and improve our service. These services handle data in accordance with their respective privacy policies.

2-1. OpenAI API (OpenAI, L.L.C.)

• Data Sent: Text and images input by the user.
• Purpose: Generating AI responses and image recognition.
• OpenAI Privacy Policy
  • Note: Data sent via the API is generally not used to train OpenAI models (based on OpenAI policies as of Jan 2026).

2-2. Google Firebase / Google Analytics 4 (Google LLC)

• Data Sent: Usage data, crash logs, device information, authentication IDs.
• Purpose: App usage analysis, authentication infrastructure, stability assurance.
• Google Privacy Policy

2-3. Google AdMob (Google LLC)

• Data Sent: Advertising identifiers (IDFA/AAID), cookies, usage data.
• Purpose: Delivering relevant advertisements.
• The App may use advertising identifiers to deliver personalized ads. On iOS, we request tracking permission; if denied, we do not collect this data.
• Google Advertising Privacy & Terms

2-4. RevenueCat (RevenueCat, Inc.)

• Data Sent: In-app purchase history, anonymized user IDs.
• Purpose: Managing subscription and billing functionality.
• RevenueCat Privacy Policy

2-5. Cloudflare Workers (Cloudflare, Inc.)

• Data Sent: API request information (IP address, request content).
• Purpose: Backend API server acting as an intermediary to OpenAI and for security management.
• Cloudflare Privacy Policy

3. Data Storage and Security

3-1. Storage Location

Primary learning data, such as your chat history (text/images) and created problem sets, is stored locally within your smartphone’s storage. This data is not permanently stored on external servers unless you intentionally transmit or share it.

3-2. Security

We implement appropriate security measures, such as SSL/TLS encryption for data transmission, to prevent data leakage, loss, or damage.

4. User Rights

4-1. Deletion of Information

Uninstalling the App will delete all data stored locally on your device, including chat history.

4-2. Opt-Out

You can limit the transmission of advertising identifiers (IDFA/AAID) through your device settings. You can also stop all data collection by ceasing use of the App (uninstalling it).

5. Children’s Privacy

While the App is not specifically targeted at children under 13, it is intended for educational use. We encourage parents and guardians to supervise their children’s use of the App and device settings.

6. Changes to This Privacy Policy

This policy may be updated without notice due to legal amendments or service changes. Significant changes will be notified within the App or on this page.

7. Contact Us

If you have any questions about this Privacy Policy or our data practices, please contact us at:

Contact:
eerf0309+aurum@gmail.com

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