Privacy Policy

Effective Date: January 1, 2026

Thanks for playing LU XU's app! Your privacy is important to LU XU and LU XU take your privacy seriously. This Privacy Policy describes the information collected when you use our products. By using our products, you agree to this policy. This policy may change from time to time, so please check back frequently. Your continued use of our products constitutes your acceptance of the changes to this Privacy Policy.

1. Information We Collect

1.1 Personal Information You Provide

We may collect personal information you choose to provide when contacting us, such as:

• Contact information including name and email address
• Messages, feedback, or support requests you send to us
• Any information you voluntarily provide when communicating with us

1.2 Automatically Collected Data

When you use the App, we may automatically collect certain information, including:

• App usage data such as app launches, feature interactions, and navigation behavior
• Performance and diagnostic data, including crash reports and system logs
• Device-related information such as device model, operating system, and advertising identifiers

This information is used to operate, maintain, and improve the App.

1.3 Photos, Videos, and Files (Local Processing Only)

Our application is a device storage cleaning and optimization tool. In order to identify duplicate, similar, or unnecessary media files, the App may scan photos, videos, and files stored on your device.

• All scanning and analysis is performed entirely on your device.
• We do not upload your photos, videos, or file contents to any server.
• We do not store, back up, or sync your media content outside your device.
• Media content is not used for advertising, profiling, or machine learning training.
• Any deletion of photos, videos, or files is performed only after your explicit confirmation.

We may access limited metadata (such as file size or creation time) solely to provide cleaning functionality.

2. Advertising and Tracking

2.1 App Tracking Transparency (ATT) and Advertising Identifier

We use Apple’s App Tracking Transparency (ATT) framework to request your permission to access the Identifier for Advertisers (IDFA). The IDFA allows us and our advertising partners to:

• Deliver personalized or non-personalized advertisements
• Measure advertising performance

If you choose not to allow tracking, you will still see ads, but they may be less relevant. You can change your tracking preference at any time by going to:

Settings → Privacy & Security → Tracking

2.2 Third-Party Advertising Partners

We may work with third-party advertising partners that use data collected from the App, together with data collected from other apps or websites, to deliver targeted advertising and measure ad effectiveness. These partners process data according to their own privacy policies.

3. Analytics and Crash Reporting

We use Firebase Analytics and Firebase Crashlytics to understand how the App is used and to improve performance and stability. These services may collect information such as:

• App launches and screen views
• Feature usage and interaction events
• Crash reports and diagnostic information

4. How We Use Your Information

We use the collected information to:

• Operate, maintain, and improve the App
• Provide customer support
• Display advertisements and measure their effectiveness
• Analyze usage trends and diagnose technical issues
• Communicate important service-related updates

5. Third-Party SDKs and Services

The App may include third-party SDKs or services, including advertising networks and analytics providers such as Firebase. These third parties may collect and process data in accordance with their own privacy policies.

6. Subscriptions and Purchases

If you purchase a subscription or premium features, payment is processed by Apple. We do not collect or store your payment card details. We may access subscription status or purchase history to manage premium access within the App.

7. Data Sharing and Disclosure

We do not sell your personal information. We may disclose information only when required to comply with applicable laws, regulations, or lawful requests from public authorities.

8. Children’s Privacy

The App is not intended for children under the age of 13. We do not knowingly collect personal information from children. If you believe we have collected such information, please contact us.

9. Data Retention

We retain information only for as long as necessary to fulfill the purposes described in this policy, unless a longer retention period is required by law.

10. Your Privacy Rights

Depending on your location, you may have rights to access, correct, delete, or restrict the processing of your data. You may also withdraw consent for tracking at any time.

11. Changes to This Privacy Policy

We may update this Privacy Policy from time to time. Changes will be posted on this page with an updated effective date. Continued use of the App constitutes acceptance of the updated policy.

12. Contact Us