Privacy Policy

This Privacy Policy describes what data Nexus Chart AI collects, how that data is collected, all uses of that data, and which third parties it is shared with.

1. Data We Collect

When you use the AI chart analysis feature, we collect and process the following data:

• Chart images. Photos of financial charts that you capture using the in-app camera.
• Trading preferences. Answers you provide in the onboarding survey: your trading experience level, the markets you trade, your trading style, and your preferred analysis detail. These answers are used to personalise the AI analysis output.
• Anonymous device identifier. A non-personal identifier generated by your device's operating system. This is used solely for server-side rate-limiting and cannot be used to identify you personally.

We do not collect your name, email address, phone number, location, contact list, payment details, or any other personal identifiers.

2. How We Collect This Data

• Chart images are collected when you tap the capture button in the in-app camera.
• Trading preferences are collected during the onboarding survey and stored locally on your device until you use the analysis feature.
• The anonymous device identifier is read automatically from the operating system.

3. How We Use Your Data

• Chart images and trading preferences are transmitted to our AI analysis service to generate the chart analysis results displayed to you in the app.
• Chart images may be stored on our servers so you can view your analysis history within the app.
• The anonymous device identifier is used only for rate-limiting on our servers to ensure fair service usage.
• We do not use your data for advertising, behavioural tracking, or any purpose other than operating and improving the core features of the app.

4. Third-Party Data Sharing

Your chart images and trading preferences are sent to Nexus Chart AI's AI analysis service, operated by gre-dev (gredev.io). This service processes your data using AI models to produce the chart analysis shown to you. It acts as a data processor on our behalf and is contractually obligated to:

• Process your data only for the purpose of providing chart analysis to Nexus Chart AI.
• Apply security and data-protection measures equivalent to or greater than those described in this policy.
• Not sell or share your data with any other third party.

We do not sell your data to advertisers or share it with any other unrelated third parties, except where required by law.

5. User Consent

Before any data is transmitted to our AI analysis service for the first time, the app displays a clear consent screen that explains exactly what data will be sent and who will receive it. Your explicit consent is required before any data leaves your device. You may withdraw consent at any time from Settings → Privacy, though doing so will disable the AI chart analysis features.

6. Data Security

• All data is transmitted over encrypted HTTPS connections.
• We apply reasonable technical and organisational measures to protect data against unauthorised access, loss, or misuse.

7. Data Retention

• Chart images stored for your history are retained until you delete them within the app or delete your data from Settings.
• Survey answers and the anonymous device identifier are stored locally on your device; they are not retained on our servers beyond the scope of the analysis request.

8. Children's Privacy

Nexus Chart AI is not directed at children under the age of 13. We do not knowingly collect data from children.

9. Changes to This Policy

We may update this Privacy Policy from time to time. Updates will be reflected with a revised date below. Continued use of the app after an update constitutes acceptance of the revised policy.

10. Contact Us

If you have questions about this Privacy Policy or your data, please contact us at info@gredev.io.

Last updated: March 28, 2026