Compass Altimeter Privacy Policy

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Compass Altimeter Privacy Policy

Last updated: 2025-09-20

Thank you for using Compass Altimeter. We value your privacy and data security and are committed to maintaining your trust. This Privacy Policy explains how we collect, use, and protect your personal information.

1. Information We Collect

1.1 Location Information

  • To accurately calculate lunar position, moonrise and moonset times, and other astronomical data, we need access to your location information.
  • You can either manually enter a location or allow the app to access the device’s GPS.
  • Location data is only used for astronomical calculations and not for any other purposes.

1.2 Device Information

Our product integrates the Umeng+ SDK, which needs to collect the following device information:

  • Device MAC address
  • Unique device identifiers (IMEI/android ID/IDFA/OPENUDID/GUID)
  • IP address
  • SIM card IMSI information

This information is used to:

  • Provide statistical analysis services
  • Calibrate report accuracy using geographic location
  • Offer basic anti-cheat capabilities

1.3 App Usage Data

  • App usage frequency and duration
  • Feature usage
  • App performance data
  • Crash reports

2. How We Use Information

We use the collected information to:

  1. Provide core astronomical features
  2. Improve user experience
  3. Enhance app performance
  4. Provide technical support
  5. Conduct statistical analysis

3. Information Security

We take the following measures to protect your information:

  1. Encrypted data transmission
  2. Secure storage
  3. Access controls
  4. Regular security assessments

4. Information Sharing

We do not share your personal information with third parties except when:

  1. We have your explicit consent
  2. Required by laws or regulations
  3. Necessary to protect our legitimate rights and interests

5. Your Rights

You have the following rights with respect to your personal information:

  1. Right of access
  2. Right to rectification
  3. Right to erasure
  4. Right to withdraw consent

6. Policy Updates

We may update this Privacy Policy from time to time. Updates will be published within the app.

7. Contact Us

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

  • Email: twtams@163.com
  • Feedback: via the app “Settings → Feedback” feature

8. Consent

By using this app, you agree to all terms of this Privacy Policy. If you do not agree with any part of this Policy, please stop using the app.