Privacy Policy

Effective Date: March 5, 2026

This Privacy Policy ("Policy") explains how Wallpaper 4K: HD & Live ("we", "us", or "our") collects, uses, shares, and protects your information when you use our Wallpaper 4K: HD & Live mobile application (the "App"), which is a pure utility app available on Google Play. We are committed to complying with global privacy regulations, including but not limited to the California Consumer Privacy Act (CCPA), the General Data Protection Regulation (GDPR), and Google Play's Data Safety Requirements, to ensure your privacy is protected. By using the App, you acknowledge that you have read, understood, and agree to the practices described in this Policy.

1. Information We Do Not Collect

We do not collect, store, or process any personal identification information (PII) that directly identifies you, such as your name, email address, phone number, or physical address. Additionally, since the App does not have login or payment functions, we do not collect any account credentials, payment details, or financial information of any kind.

2. Information We Collect

To provide and improve the App, serve ads, and track app performance, we collect non-personal and device-related information through third-party tools (detailed in Section 3). This information does not identify you individually and is used solely for the purposes outlined below:

Device Information: Such as device model, operating system (OS) version, device ID (e.g., Android ID), IP address, and device manufacturer.

App Usage Information: Such as the features you use, the frequency and duration of your App usage, and interactions with in-app ads.

Attribution Information: Data related to how you found and installed the App, collected through our attribution tools (see Section 3).

3. Third-Party Tools We Use

We work with trusted third-party service providers to help us operate the App, serve ads, and track performance. These third parties may collect and process the information outlined in Section 2 on our behalf, and they are bound by their own privacy policies and our instructions to protect your information:

Ad Mediation: TopOn – This tool mediates ad serving from multiple ad networks (including AdMob and Meta Ads). TopOn and its partnered ad networks may collect device and usage information to deliver relevant ads.

Attribution: Adjust – This tool collects attribution data to help us understand how users discover and install the App, enabling us to optimize our marketing efforts.

Ad Networks: AdMob, Meta Ads – These ad networks may collect non-personal information to serve targeted ads (in compliance with Google Play and regional regulations).

4. How We Use Your Information

We use the collected information for the following legitimate purposes:

To operate and maintain the App, ensuring it functions properly on your device.

To serve relevant in-app ads through TopOn and its partnered networks (AdMob, Meta Ads etc.).

To track App performance, user engagement, and attribution (via Adjust) to improve the App and our marketing strategies.

To comply with Google Play's Data Safety Requirements and other applicable global privacy regulations.

5. Information Sharing and Disclosure

We do not sell, rent, or share your information with any third parties except as described below:

Third-Party Service Providers: As outlined in Section 3, we share non-personal information with TopOn, Adjust, AdMob, and Meta Ads etc. solely to fulfill their service obligations to us.

Legal Requirements: We may disclose information if required by law, court order, or government regulation, or to protect our rights, property, or safety, or the rights, property, or safety of others.

6. Data Retention

We retain the collected non-personal information only for as long as necessary to fulfill the purposes outlined in this Policy, or as required by law. Once the information is no longer needed, we will securely delete or anonymize it.

7. Your Privacy Rights

Depending on your region (e.g., California, EU), you may have certain privacy rights, including the right to access, correct, or delete your information (where applicable). Since we do not collect PII, most of these rights may not apply, but if you have questions or requests regarding your information, please contact us at the email below.

8. Security

We take reasonable measures to protect the information we collect from unauthorized access, use, or disclosure. However, no method of data transmission or storage is 100% secure, and we cannot guarantee absolute security.

9. Changes to This Policy

We may update this Policy from time to time to reflect changes in our practices or applicable regulations. We will notify you of any material changes by updating the "Effective Date" at the top of this Policy and, where required by law, through in-app notifications or other means. Your continued use of the App after the update constitutes your acceptance of the revised Policy.

10. Contact Us

If you have any questions, concerns, or requests regarding this Privacy Policy or our data practices, please contact us at: shuzhijie2025@gmail.com.