Privacy Policy
Effective and last updated August 25, 2026. MomentWalls is provided by Chang Studio. This policy explains the limited data involved when you use the app.
1. Data kept on your device
MomentWalls stores your favorites, language, automatic-change settings, current wallpaper references, prepared wallpaper files, and limited review-prompt eligibility counters locally. The app does not provide accounts or cloud synchronization.
2. Network requests
The app requests artwork catalogs, previews, and wallpaper files from Cloudflare R2. Cloudflare may process IP address, request, security, and network information under its own privacy policy. Chang Studio does not use these requests to build advertising profiles.
3. What we do not collect
MomentWalls has no advertising, cross-app tracking, analytics SDK, social profile, account database, or user-content upload. Purchases and ratings are handled by the App Store or other platform store; Chang Studio does not receive your payment credentials.
4. Retention and your choices
Local preferences and prepared files remain until the app removes them during normal cache maintenance, you restore settings where available, or you uninstall the app. You can remove favorites at any time. Store transaction records remain subject to the store provider’s policy.
5. Security, children, and changes
Wallpaper files are checked before use, and the app uses platform sandboxing where available. No system is perfectly secure. MomentWalls is a general-audience art app and is not directed to children under 13. Material changes will be reflected here with a revised date.
Contact
Questions may be sent to psychangstudio@gmail.com.