Privacy Policy
Last updated: December 2025
Introduction
Crux Daily ("we," "our," or "us") is committed to protecting your privacy. This Privacy Policy explains how we collect, use, and safeguard your information when you use our mobile application.
Information We Collect
👤 Account Information
- Email address (from Apple or Google sign-in)
- Display name
- Profile picture (if provided by sign-in provider)
📊 Usage Data
- Reading progress and completed cruxes
- Quiz answers and scores
- XP points and learning statistics
- App preferences (theme, notifications)
📱 Device Information
- Device type and operating system
- Push notification tokens (if notifications enabled)
Payment Information
We do not directly collect or store payment information. All payments are processed securely through Apple's App Store. Please refer to Apple's privacy policy for payment data handling.
How We Use Your Information
We use your information to:
- Provide and maintain your account
- Track your learning progress across devices
- Send push notifications about new content (if enabled)
- Improve our app and content
- Provide customer support
Data Storage and Security
Your data is stored securely using Google Firebase, which employs industry-standard security measures including encryption in transit and at rest. We retain your data for as long as your account is active.
Third-Party Services
We use the following third-party services:
These services have their own privacy policies governing the use of your information.
Your Rights
You have the right to:
- Access your personal data
- Delete your account and all associated data (available in Settings → Delete Account)
- Opt out of push notifications
- Request a copy of your data by contacting us
Children's Privacy
Crux Daily is not intended for children under 13. We do not knowingly collect personal information from children under 13.
Changes to This Policy
We may update this Privacy Policy from time to time. We will notify you of any changes by updating the "Last updated" date.
Contact Us
If you have questions about this Privacy Policy, please contact us at: