1. Data Minimization
This App follows the principle of data minimization, collecting and processing only the minimum information necessary to provide core functionality.
2. Information We Collect
2.1 Account Information (Optional)
If you choose to sign in, we only process the following:
- Sign in with Apple: We receive an anonymous user identifier provided by Apple (which does not include your real name or email, unless you choose to share it).
- We do not require phone numbers, government IDs, or other personally identifiable information.
2.2 Information You Voluntarily Provide
- Date and time of birth: Used to generate BaZi charts. This information is processed locally on your device or transmitted to our servers for computation, and is not stored in association with your identity.
- Name (for name analysis only): Used for real-time computation and not persistently stored on servers.
2.3 Automatically Collected Information
- Anonymous usage statistics: Aggregated data such as feature usage frequency and crash reports, containing no personally identifiable information.
- Device information: Limited to device model and OS version for compatibility purposes.
3. Information We Do Not Collect
- Advertising identifiers (IDFA)
- Precise geolocation (the compass feature uses device sensors without uploading location data)
- Contacts or address book
- Photos, camera, or microphone data
- Browsing history or usage data from other apps
- Third-party tracking cookies or fingerprints
4. Third-Party AI Services
This App uses third-party AI services to generate content interpretations. Data transmitted to AI services:
- Contains only de-identified computation parameters (such as BaZi stem-branch combinations), without user identity information.
- Is handled in accordance with the AI service provider’s data processing policies.
- We use API access that does not use user data for AI model training.
5. In-App Purchases
The App offers optional in-app purchases and subscriptions, processed entirely by Apple via the App Store. We do not collect or store your payment card numbers, bank account details, or full billing address.
- Payment processing: Apple handles all payment transactions. How Apple collects and uses information related to purchases is described in Apple’s Privacy Policy.
- What we receive: We may receive limited information from Apple needed to verify purchase or subscription status (such as transaction and product identifiers) so we can unlock features. We do not receive your full payment credentials.
- Subscriptions: Renewal, cancellation, and refunds follow Apple’s subscription terms and your Apple ID settings. We cannot issue refunds for App Store purchases on Apple’s behalf.
6. Data Storage
- Local-first: Your query history is stored locally on your device by default.
- Cloud sync (optional): Only activated when you explicitly enable it. Data is encrypted during sync, and you can disable it and delete cloud data at any time.
- Server data: Anonymous statistical data is automatically deleted after no more than 12 months.
7. Data Security
We use industry-standard encryption (HTTPS/TLS) to protect data in transit and encrypt stored data.
8. Your Rights
You have the right to:
- Delete all locally stored data at any time
- Disable cloud sync and delete cloud data
- Delete your account and all associated data
- Request a copy of your stored data
9. Children’s Privacy
This App is not intended for children under 13. We do not knowingly collect information from children under 13.
10. Policy Changes
If this policy undergoes significant changes, we will notify you through in-app notifications.
11. Contact Us
If you have any questions about this Privacy Policy, please contact us through “Settings → Contact Us” in the App.
By using this App, you acknowledge that you have read and agreed to this Privacy Policy.