In accordance with the Personal Information Protection Law of the People's Republic of China, the Provisions on the Necessary Scope of Personal Information for Common Types of Mobile Internet Applications, and relevant requirements of the Ministry of Industry and Information Technology, we set out below the third-party services integrated into Duo Wallpaper (the "App") and their processing of personal information. The App initializes and uses the third-party services listed below only after you agree to the Privacy Policy.
1. Third-Party SDKs
1. Umeng+ Analytics (U-App)
| SDK | Umeng+ U-App Analytics (components including UMCommon, UMDevice, UMRemoteConfig), version 7.6.7 |
|---|---|
| Provider | Beijing Ruixun Lingtong Technology Co., Ltd. (Umeng+) |
| Purpose | Operational analytics, crash collection and performance monitoring, remote configuration |
| Processing | De-identification measures applied; transmitted over encrypted channels (HTTPS) for analytics and security analysis |
| Personal information collected |
|
| Website & privacy policy | https://www.umeng.com/policy |
2. Umeng+ Push (U-Push)
| SDK | Umeng+ U-Push (UMPush), version 4.1.4 |
|---|---|
| Provider | Beijing Ruixun Lingtong Technology Co., Ltd. (Umeng+) |
| Purpose | Pushing notifications such as wallpaper updates and content recommendations; delivery analytics |
| Processing | Push tokens and notification content transmitted over encrypted channels for message delivery |
| Personal information collected |
|
| System permission requested | Notifications (to display pushes; can be disabled in system settings) |
| Website & privacy policy | https://www.umeng.com/policy |
3. Google Mobile Ads (AdMob)
| SDK | Google Mobile Ads (GADMobileAds) |
|---|---|
| Provider | Google LLC |
| Purpose | Ad delivery (e.g., non-members unlocking wallpaper downloads by viewing ads) and ad fraud prevention |
| Processing | The App does not request tracking permission; where tracking is not authorized, the advertising identifier reads as zero and ads are served in non-personalized mode; in regions where consent is required, consent is sought and may be withdrawn via a Google-authorized consent form |
| Personal information collected |
|
| Website & privacy policy | https://policies.google.com/privacy |
2. Apple System Services
The following capabilities are provided directly by Apple's operating system and services; related data processing is governed by Apple's Privacy Policy:
| Service | Purpose | Personal information involved |
|---|---|---|
| App Store In-App Purchase (StoreKit) | Membership purchase, subscription management, restoring purchases | Transaction information linked to your Apple ID (product, order status, expiration date); payment information is handled directly by Apple and is not accessible to the App |
| Sign in with Apple | Account sign-in and authentication | Unique user identifier; and, if authorized, the Apple private email relay address |
| APNs (Apple Push Notification service) | System-level push notification channel | Device push token (Device Token) |
| Volcano Engine large-model service (server-side) | "AI Wallpaper" generation: your uploaded reference image and prompt are forwarded via our server to its large model to generate wallpaper images | The reference image you upload and the prompt text you enter; used solely for the current generation, not for model training |
| Widgets (WidgetKit) / Live Activities | Displaying wallpaper widgets on the home screen and lock screen | Wallpaper configuration and cached data, stored only locally on the device and in the shared container |
3. Open-Source Components
The App uses the following open-source components. They run only locally within the App process on your device to implement networking, image loading, UI animation and other basic functions, and do not collect or upload your personal information on their own:
| Component | Version | Purpose | Source |
|---|---|---|---|
| Alamofire | 5.12.2 | HTTP networking | GitHub |
| Moya | 15.0.3 | Network abstraction layer | GitHub |
| Kingfisher | 8.12.0 | Image downloading and caching | GitHub |
| SDWebImageSwiftUI | 3.1.4 | Image loading and display | GitHub |
| AlertToast | 1.3.9 | UI toast notifications | GitHub |
| HXPhotoPicker | 5.0.5 | Photo/media picker UI component | GitHub |
| Lottie (lottie-spm) | 4.6.1 | Vector animation rendering | GitHub |
4. Notes
- The third-party services listed above may change due to version upgrades or business adjustments. In case of material changes, we will update this Disclosure and notify you as required by law.
- Except as described in this Disclosure, we do not share your personal information with any other third parties.
- If you wish to withdraw your consent to the above third-party services processing your personal information, you may stop such processing by deleting your account in the App or uninstalling the App.
If you have any questions about this Disclosure, please contact us via the channels in the Privacy Policy.