Last Updated: 20th Sep, 2025
This Privacy Policy describes how Lumin ("we," "our," or "us") collects, uses, and protects your information when you use our mobile application (the "App"). We are committed to protecting your privacy and ensuring the security of your personal information.
Contact Information
Email: support@lumin.study
1. Information We Collect
1.1 Personal Information
- Name (provided during onboarding)
- Apple ID information (when you sign in with Apple)
- Email address (if provided through Apple ID)
- Study preferences and academic level (provided during onboarding)
1.2 Usage Data
- Study session data (duration, study modes used, progress)
- Learning analytics (flashcard performance, quiz scores, study patterns)
- App usage statistics (features used, time spent in app)
- Device information (iOS version, device model, app version)
1.3 Content Data
- Study materials you upload (PDFs, text files, images)
- Generated study content (summaries, flashcards, quizzes)
- Study set organization and subject categorization
- Notes and annotations you create
1.4 Technical Data
- Device identifiers and app installation data
- Crash reports and error logs
- Performance and diagnostic information
2. How We Use Your Information
- Provide and maintain the App's functionality
- Generate personalized study materials using AI
- Sync your data across your Apple devices via iCloud
- Track your learning progress and provide analytics
- Send study reminders and notifications (if enabled)
- Improve our services and user experience
- Provide customer support
- Process subscription payments through Apple App Store
3. Data Storage and Synchronization
3.1 iCloud Integration
- Your study data is stored in your personal iCloud account
- We do not have direct access to your iCloud data
- Data synchronization is governed by Apple's privacy policies
- You can disable iCloud sync in your device settings
3.2 Local Storage
Some data is stored locally on your device for offline access and performance optimization.
4. Third‑Party Services
4.1 OpenAI Integration
- Your uploaded study materials are sent to OpenAI for processing
- OpenAI processes the content to generate study materials
- We do not store your content on OpenAI's servers beyond the processing time
- OpenAI's privacy policy applies: https://openai.com/privacy/
4.2 Apple Services
- Sign in with Apple for authentication
- iCloud/CloudKit for data synchronization
- Apple App Store for subscription management
- Apple Push Notification Service for study reminders
4.3 RevenueCat
- RevenueCat processes subscription‑related data
- No personal information is shared beyond what's necessary for subscription management
- RevenueCat's privacy policy: https://www.revenuecat.com/privacy/
5. Data Sharing and Disclosure
We do not sell, trade, or rent your personal information to third parties. We may share your information only in the following circumstances:
5.1 Service Providers
With trusted third‑party service providers (OpenAI, RevenueCat) who assist in operating our App, subject to confidentiality agreements.
5.2 Legal Requirements
If required by law, regulation, or legal process, or to protect the rights, property, or safety of our users or others.
5.3 Business Transfers
In connection with any merger, acquisition, or sale of assets, your information may be transferred as part of that transaction.
6. Data Security
- Data encryption in transit and at rest
- Secure API communications
- Regular security assessments
- Limited access to personal information
However, no method of transmission over the internet or electronic storage is 100% secure.
7. Data Retention
- Account data: Until you delete your account
- Study data: Until you delete it from the App or your iCloud storage
- Usage analytics: Aggregated and anonymized after 2 years
- Support communications: 3 years from last contact
8. Your Rights and Choices
8.1 Access and Portability
- View your personal data within the App
- Export your study materials and data
8.2 Correction
- Update your profile information in the App settings
- Correct inaccurate data
8.3 Deletion
- Delete specific study sets and materials
- Delete your entire account and associated data
- Contact us for complete data removal
8.4 Control
- Disable iCloud synchronization
- Turn off push notifications
- Manage subscription settings through Apple App Store
9. Children's Privacy
Lumin does not knowingly collect personal information from children under 13. If we become aware that we have collected personal information from a child under 13, we will take steps to delete such information promptly.
10. California Privacy Rights
If you are a California resident, you have additional rights under the California Consumer Privacy Act (CCPA):
- Right to know what personal information is collected
- Right to delete personal information
- Right to opt‑out of the sale of personal information (we do not sell personal information)
- Right to non‑discrimination for exercising privacy rights
11. International Data Transfers
Your information may be transferred to and processed in countries other than your own. We ensure appropriate safeguards are in place for such transfers.
12. Changes to this Privacy Policy
We may update this Privacy Policy from time to time. We will notify you of any material changes by:
- Posting the updated policy in the App
- Sending a notification through the App
- Updating the "Last Updated" date
Your continued use of the App after changes constitutes acceptance of the updated policy.
13. Contact Us
If you have any questions about this Privacy Policy or our privacy practices, please contact us at:
Email: support@lumin.study
We will respond to your inquiry within 30 days.
14. Consent
By using Lumin, you consent to the collection, use, and sharing of your information as described in this Privacy Policy.