Privacy Policy

Product: Cosmic Horizon

Effective date: 2026-09-08

Last updated: 2026-09-08

Shenzhen Qizhuan Technology Co., Ltd ("we", "us") operates the Cosmic Horizon app. We take your privacy seriously and are committed to processing your personal information lawfully, fairly, and only as necessary. Please read this policy carefully before using the app to understand how we handle your personal information.

1. Information We Collect and How We Use It

We collect only what is necessary for the features below. See the in-app Personal Information Collection List and Third-Party Sharing List for details.

• Analytics and crash diagnostics: when the app starts and while you use it, we use the integrated Firebase (Analytics and Crashlytics) services to collect device model, operating system version, app version, language/region settings, app instance identifiers, installation identifiers, identifier for vendor (IDFV), crash diagnostic data, and in-app feature usage records (such as opening search and the celestial object identifier, result rank, and result count when selecting a search result). This information helps us understand feature usage, improve the product, and locate and fix crashes. Network communication after Firebase services are enabled processes IP addresses, from which Analytics may derive coarse geographic statistics such as country/region and city. This does not involve obtaining GPS coordinates through device location services.
• Feedback: when you use the feedback feature, the system email automatically includes your app version, operating system version, and device model, together with the feedback content you choose to write. The email is sent by you from your device's mail client, entirely at your discretion.

These Firebase services are enabled when the app starts to provide analytics and crash diagnostics.

2. Device Permissions

The app currently does not request location, camera, photo library, microphone, contacts, or push notification permissions, and does not obtain GPS coordinates through device location services. Browsing the universe map, searching for celestial objects, and viewing their information do not depend on these permissions. Firebase network communication and IP-based coarse geographic statistics do not involve requesting device location permission; see Section 1 for details.

3. Third-Party Services and Sharing

To provide analytics and crash diagnostics, we integrate Firebase (Analytics and Crashlytics) provided by Google LLC, and share with it the device and app information and usage records listed in Section 1. Its privacy policy is available at https://firebase.google.com/support/privacy. We do not otherwise share, transfer, or publicly disclose your personal information to third parties, except as required by law.

4. Storage and Retention

We retain your personal information only for as long as necessary to fulfill the purposes described in this policy, after which it will be deleted or anonymized, unless a longer retention period is required by law.

5. Security

We apply industry-standard safeguards to protect your personal information against unauthorized access, disclosure, use, alteration, or loss. Please understand that no method of transmission over the internet is completely secure; we strive to protect the information you provide.

6. Your Rights

You have rights under applicable law to access, correct, supplement, or delete your personal information. The app has no account system and does not require you to provide identifying information such as your name or phone number:

• You may stop further collection by ceasing use and uninstalling the app.
• To access, correct, supplement, or delete collected information, or to make other privacy requests, contact us using the details below; we will respond within a reasonable period as required by law.

7. Children

The app is intended for general audiences and is not directed to children under the age of 14. We do not knowingly collect personal information from children. If you are under 14, please read this policy with your guardian and use the app only with your guardian's consent. If we become aware that we have collected a child's personal information without the prior consent of a guardian, we will delete it promptly. Guardians with questions about their child's personal information may contact us below.

8. Updates to This Policy

We may update this policy from time to time. We will post the latest version on this page and update the effective date; for material changes, we will provide notice through appropriate means.

9. Contact Us

If you have any questions, comments, or complaints about this policy or your personal information, please contact us; we will respond within a reasonable period:

• Operator: Shenzhen Qizhuan Technology Co., Ltd
• Email: support@docuspeed.ai