ZUOEKAI Smart Window Privacy Policy

1. Scope

This policy applies to ZUOEKAI Smart Window and the related public homepage, activation, account recovery, update, and support services.

2. Information We Collect

To provide activation and recovery services, we may process:

• User-submitted username, email address, and activation code.
• Activation tokens, activation-code binding records, device model codes, device names, and necessary device runtime information.
• When Google Sign-In is used, the Google account stable identifier, email address, display name, ID Token validation result, and the selected bound activation record.
• App version, error information, feedback content, and uploaded feedback images or attachments.

3. How We Use Information

• Verify activation codes and grant app access.
• Restore previously bound activation records after reinstall or re-login.
• Show a list of bound activation codes when a Google account is linked to more than one activation record.
• Provide updates, remote feature configuration, troubleshooting, and support.
• Prevent unauthorized use, fraud, abuse, and service attacks.

4. Google Sign-In

Google Sign-In is optional. Users can continue to use the traditional username, email, and activation-code flow. We do not automatically claim history records only from a Google email address; a Google account is linked only after an explicit binding step.

5. Sharing and Third-Party Services

To support Google Sign-In, we receive and validate the ID Token returned by Google. We do not sell personal information. Except where required by law, to protect users and service security, or with user authorization, we do not disclose personal information to unrelated third parties.

6. Retention and Security

We keep related information only for as long as needed to achieve the purposes described in this policy, and we use access control, transport encryption, and permission isolation to protect it. Activation codes, activation tokens, and account information must not be shared through unauthorized channels.

7. Your Rights

You may contact us to ask about, correct, or delete information related to your account. To request deletion, email us with the app name and the bound account information so we can verify ownership and process the request within a reasonable time. Deleting activation-account information may prevent the related activation records, recovery capability, and app access from continuing to work.

8. Children's Privacy

This app is not primarily directed at children. If a guardian believes a minor has submitted personal information without consent, please contact us.

9. Changes

When the service, legal requirements, or information processing changes, we may update this policy and publish the latest version on this page.

10. No Advertising or Profiling Use

We use activation and recovery data only to provide account binding, login recovery, support, and service security. We do not use this information for advertising, sale, or profiling unrelated to the app experience.