Lumina Diary

1. Introduction

Welcome to Lumina Diary (“we,” “our,” or “us”). We respect your privacy and are committed to protecting it. This Privacy Policy explains our practices regarding the collection, use, and disclosure of information when you use our mood tracking mobile application.

2. Data Collection

Our core principle is privacy by design. We do not collect, store, or process any personally identifiable information (PII) such as your name, email address, phone number, or IP address.

3. Anonymous Authentication

The app utilizes anonymous login functionality. You are not required to create an account with personal credentials to use the app. Any data generated during your use of the app is tied strictly to an anonymous identifier.

4. Mood Tracking and Weekly Recaps

Your daily mood inputs and the resulting weekly recaps are stored securely using your anonymous identifier. Because we do not collect personal data, we cannot link this mood data back to you as an individual.

5. Premium Features and Third-Party Services

If you choose to use our premium image generation feature, please be aware of how third-party services interact with the app:

• Gemini API (Google): To generate images based on your tracked moods, the app sends anonymized text prompts to the Gemini API. No personal data or user identifiers are transmitted to Google during this process. The use of this data by Google is governed by Google’s Privacy Policy and Terms of Service.
• Payment Processors: Premium subscriptions are handled entirely by the respective app stores (e.g., Apple App Store or Google Play Store). We do not collect, process, or have access to your credit card information or billing details.

6. Children’s Privacy

Because we do not collect personal information, we do not knowingly collect personal data from children under the age of 13 (or the applicable age of consent in your region).

7. Changes to This Policy

We may update our Privacy Policy from time to time. We will notify you of any changes by updating the “Effective Date” at the top of this policy and posting the new policy within the app.

8. Contact Us

If you have any questions about this Privacy Policy, please contact us at: