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Privacy Policy

Last Updated: June 7, 2026

QupuTech ("we," "our," or "us") operates the Eggtopia (破壳物语) mobile application (the "Service"). This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you use our Service.

1. Information We Collect

1.1 Information You Provide

  • Account Information: When you sign in via Google, Apple, or continue as a guest, we collect a unique user identifier (UID), display name, and avatar image if you choose to upload one.
  • Profile Data: You may voluntarily set a display name and upload a profile avatar. Avatar images are stored on Cloudflare R2 object storage.
  • Game Progress: Your in-game data — including scores, levels, coins, pet/egg collections, and progress — is synced to our servers to enable cross-device play and data recovery.

1.2 Information Collected Automatically

  • Device Information: Device model, operating system version, unique device identifier, and app version.
  • Usage Data: Gameplay activity such as session start/end times, level attempts, feature usage, and in-game events.
  • Firebase Services: This app uses Firebase to provide push notifications, app statistics, and basic operational analytics. Firebase may collect device identifiers, app usage data, and device and system information for push notifications, statistical analysis, performance improvements, and service stability maintenance.
  • Google AdMob (Advertising): This app uses Google AdMob to display advertisements. To serve, measure, and personalize ads, Google AdMob (as a third-party SDK) may automatically collect the following categories of data: (a) Device information such as device model, operating system version, screen size, and mobile carrier name; (b) Unique identifiers including IP address, the device's advertising ID (IDFA on iOS / GAID on Android), and other device identifiers; (c) Location data — coarse or precise location derived from IP address or device sensors, subject to your consent and device settings; (d) Ad interaction data such as ad requests, impressions, clicks, video views, completions, and reward grants; (e) App usage data including session start/end times, in-app events, and ad-related events; and (f) Performance and diagnostic data such as crash logs. The data collected by Google AdMob is processed by Google LLC and is governed by Google's Privacy Policy. You can manage or reset your advertising ID, limit ad tracking, or opt out of personalized (interest-based) ads through your device settings (iOS: Settings > Privacy & Security > Tracking / Apple Advertising; Android: Settings > Google > Ads).

1.3 Authentication Providers

When you sign in with Google or Apple, those providers share your account identifier with us (subject to the permissions you grant). We do not receive your Google or Apple account passwords.

2. How We Use Your Information

We use the collected information for the following purposes:

  • To provide, maintain, and improve the Service.
  • To sync your game progress across devices and enable account recovery.
  • To verify and process in-app purchases.
  • To serve and optimize advertisements within the Service.
  • To analyze usage patterns and improve gameplay experience.
  • To detect, prevent, and address technical issues or fraudulent activity.
  • To comply with legal obligations.

3. Data Sharing and Disclosure

We do not sell your personal information. We may share information in the following circumstances:

  • Service Providers: We use third-party services for infrastructure hosting (Cloudflare, PostgreSQL database hosting), authentication (Apple, Google), and ad serving. These providers receive only the data necessary to perform their functions.
  • Legal Compliance: We may disclose information if required by law, regulation, or valid legal process.
  • Business Transfers: In connection with a merger, acquisition, or sale of assets, your information may be transferred, subject to this Privacy Policy.

4. Data Retention

We retain your data for as long as your account is active or as needed to provide the Service. If you request account deletion, we will delete or anonymize your personal data within 30 days, except where we are required to retain certain information by applicable law (e.g., financial transaction records).

5. Your Rights

Depending on your jurisdiction, you may have the right to:

  • Access: Request a copy of your personal data.
  • Rectification: Correct inaccurate or incomplete data.
  • Deletion: Request deletion of your account and associated data.
  • Portability: Receive your data in a structured, machine-readable format.
  • Withdraw Consent: Revoke consent for data processing where consent is the legal basis.

To exercise these rights, contact us at the email address below. For account deletion, please refer to our Account Deletion instructions.

6. Children's Privacy

The Service is intended for general audiences and is not directed to children under the age of 13 (or the applicable age of digital consent in your jurisdiction). We do not knowingly collect personal information from children under 13. If you believe we have inadvertently collected such information, please contact us so we can promptly delete it.

7. Security

We implement appropriate technical and organizational measures — including encryption in transit (TLS), authenticated API access, and access controls — to protect your personal data. However, no method of electronic storage or transmission is 100% secure.

8. International Data Transfers

Your information may be transferred to and processed on servers located outside your country of residence. We take appropriate safeguards to ensure your data remains protected in accordance with this Privacy Policy.

9. Changes to This Policy

We may update this Privacy Policy from time to time. We will notify you of material changes by posting the updated policy within the Service and updating the "Last Updated" date. Continued use of the Service after such changes constitutes acceptance of the updated policy.

10. Contact Us

If you have questions or concerns about this Privacy Policy or our data practices, please contact us:

Email: [email protected]

Developer: QupuTech QupuTech

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