This Privacy Policy describes how the Wallpapers (壁纸美图) iOS app handles your data. The app is free, requires no account, and stores your favorites on your device.
| Data | Linked to you | Used for tracking | Purposes |
|---|---|---|---|
| Advertising Data (e.g. ad impressions and interactions) | Yes | Yes | Third-party advertising, developer advertising, analytics |
| Device ID (including the Identifier for Advertisers, IDFA) | Yes | Yes | Third-party advertising, analytics, developer advertising |
| Product Interaction (e.g. app feature usage) | Yes | Yes | Analytics, third-party advertising |
| Crash Data, Performance Data, Other Diagnostic Data | No | No | Analytics |
| Photos / Videos (only images you explicitly choose to save to your photo library) | No | No | App functionality |
On first launch the app asks for permission to track (App Tracking Transparency dialog:
"This identifier will be used to deliver personalized ads to you."). If you allow it,
the advertising identifier (IDFA) is shared with Google AdMob to deliver personalized ads
and measure ad performance. Tracking domains used by the ad provider include
googleads.g.doubleclick.net and googlesyndication.com.
Wallpaper images are fetched live from third-party image providers, including Unsplash, Pexels, Pixabay, Flickr, Openverse, Wikimedia Commons, and Bing. Your search keywords are sent to these providers to return results; their own privacy policies apply to those requests. Images are served under each provider's license terms, and attribution is shown on each photo where required.
Favorites, offline albums, recent searches, and caches are stored locally on your device and are never uploaded to our servers — we operate no user accounts and no backend that receives your personal data. Deleting the app removes this locally stored data.
The app is rated 4+ and is suitable for a general audience. We do not knowingly collect personal data from children; advertising and analytics data is handled by the third-party ad provider as described above.
We retain no personal data on our own servers because we collect none directly. Ad and analytics data retained by Google AdMob is subject to Google's retention policies. Network requests from the app use HTTPS.
Depending on your region you may have the right to access, correct, delete, or restrict processing of your data. For data held by the ad provider, please use Google's privacy controls. For anything else, contact us via GitHub Issues and we will respond within a reasonable time.
If this policy changes materially, the updated version will be posted at this same URL and the effective date updated. Continued use of the app after changes take effect constitutes acceptance of the revised policy.
Questions about this policy: please open an issue at nightwolf-chen/product-support issues.