Privacy Policy
Last updated: April 30, 2026
This Privacy Policy describes how Dragon Knowledge ("we," "our," or "us") collects, uses, and shares information when you use our mobile application. By installing or using the app, you agree to the practices described below.
Information We Collect
Unique Identifiers
To support analytics, attribution, and to deliver a stable experience, we may collect the following identifiers:
- Google Advertising ID (GAID): used for analytics and attribution. You can reset or opt out of personalized advertising at any time in your device settings. Learn more: Google's advertising policies.
- User ID: a UUID generated and stored locally on your device, used to understand app usage in aggregate. The User ID is not tied to any personal information.
Push Notifications (Firebase Cloud Messaging)
This app may use Firebase Cloud Messaging to send push notifications. We collect a device token solely for delivering these notifications. You can disable notifications at any time in your device settings.
Firebase Privacy Policy: https://firebase.google.com/support/privacy
Device Information
We collect basic device information including:
- Device model and manufacturer
- Operating system version
- Language and locale settings
This information helps us optimize the app for your device and troubleshoot issues.
Installation Source
We may collect information about where the app was installed from (for example, Google Play Store) for analytics purposes only.
Analytics & Attribution
This app may use third-party analytics services to help us understand app usage and improve our services. These services may collect data according to their own privacy policies. By using the app, you consent to the data practices described by those providers.
Local Data Storage
The app stores your preferences, favourites, unlock progress, quiz history, and any optional birthdate reading locally on your device via an encrypted local database. This data is not transmitted to our servers. You can erase all of it at any time via Settings → "Delete All Data".
How We Use Information
- To provide and maintain the app's features (codex, quiz, hall, lunar calendar)
- To send opt-in daily reminders if you enable them
- To analyse usage in aggregate to improve future versions
- To prevent abuse and troubleshoot issues
What We Do NOT Collect
- We do not access your camera, microphone, photos, contacts, calendar, or location.
- We do not collect, transmit, or store the content of your favourites, quiz answers, or birthdate reading on our servers — these stay on your device.
- We do not knowingly collect data from children under 13.
Third-Party Links
The app may contain links to third-party websites or services (for example, the Google Play Store listing). We are not responsible for the privacy practices of these external sites. We encourage you to review their privacy policies before interacting with them.
Your Rights
You have the right to access, correct, or delete personal information we hold about you. Because nearly all data is stored locally on your device, the most effective way to delete it is through Settings → "Delete All Data" inside the app. You may also reset your Google Advertising ID through your device settings.
Changes to this Policy
We may update this Privacy Policy from time to time. We will notify you of any material changes by posting the new policy on this page and updating the "Last updated" date.
Contact Us
If you have any questions or concerns about this Privacy Policy, please contact us at [email protected] or via the Contact page.