HingeGlass is a native Android home and fold-animation app. It uses app information, workspace layout, preferences and supported hinge/display information locally on your device. Version 1.1.0 separates the native Home workspace from Settings and fold-animation Preview.
HingeGlass has no account, ads, analytics, backend or network-upload feature. The Android app does not request Internet permission.
Information used on your device
- Launchable apps: HingeGlass reads launchable activities in the current supported profile to display your home, build local search results and open an app you select. It does not upload your installed-app inventory.
- Workspace and preferences: Workspace pages, shortcut positions, page selection, dock favorites and app component identifiers, visual and motion preferences, Settings navigation, the saved Preview angle and calibration choices are kept in private app storage. Your device uses these choices to restore your layout. Preview playback is separate from Home.
- System wallpaper: Home can display the system wallpaper through Android. HingeGlass does not read, copy or capture its pixels. Fold effects render the app’s own workspace content, not another app or the system wallpaper.
- Hinge and posture information: Available public Android sensor and WindowManager information is processed locally for the fold effect. Manual preview is simulated; posture animation is estimated; live input depends on usable measurements exposed by Android.
- Local diagnostics: Advanced diagnostics show device, display and sensor capabilities and local frame measurements. This information is not automatically exported or uploaded. A device check or intentional hinge sweep is optional; samples are processed locally.
Optional local frame-metrics export in 1.1.0
You may explicitly start a bounded Home frame-metrics capture and choose to save the report. This writes a JSON file to Android Downloads. It includes measured frame timing, capture timestamps, app version, window size and density, the Home-effect setting and device/build metadata such as the Android build fingerprint. It does not include your app inventory, workspace component list, hinge trace, screenshots or the contents of other apps.
The app does not transmit this file. You decide whether to keep it, delete it using a file manager, or share it through another app. If you choose to share it, that receiving app and recipient handle the information you send. Version 1.0.0 does not offer this Home export action.
Optional local fold probe and calibration in 1.2.0
Developer alignment profiles store viewport size, density, rotation and reference-grid preferences locally. They do not contain hardware serials and do not infer a physical cover or inner screen identity.
You can start a local fold-continuity recording for up to five minutes. It records hinge sensor metadata, raw and normalized samples, timestamps, window and display geometry/capabilities, activity lifecycle changes, app version and device model/build. It does not record app inventory, accounts, hardware serials, screenshots or other apps’ content. Lifecycle gaps remain gaps; diagnostics do not prove physical folding or simultaneous display support.
Recordings remain in private app storage until app storage is removed. You may explicitly export a completed trace to Downloads. Exported files can survive uninstall and must be deleted separately. No recording is automatically exported or transmitted; any later sharing is your choice.
Storage, retention and deletion
Saved settings, workspace pages, shortcut positions and favorites remain in HingeGlass private app storage until you change them, clear the app's storage through Android settings, or uninstall HingeGlass. Android backup is disabled for this app.
A report you explicitly save in Downloads is separate from private app storage and may remain after clearing app storage or uninstalling. Delete that exported file separately using Android Files or another file manager.
HingeGlass does not maintain a server-side account or a server copy of your local app inventory, preferences or hinge data. There is no HingeGlass account to delete.
Your choices
You can explore Manual preview without a hinge sensor or a default-home change. Selecting HingeGlass as your home app is an optional Android system action. You can cancel the selector or choose a different home app in Android's default-home settings at any time.
A second display surface is requested only after your action and only when Android exposes an available public presentation capability. Device capability information is not a promise that every foldable supports live angles or simultaneous displays.
Visiting this policy website
This page contains no analytics scripts, advertisements, forms or embedded third-party content. It does not read the HingeGlass app's local data.
When your browser requests this website, the hosting service receives ordinary connection information, such as an IP address, the requested URL and browser request headers. The hosting provider may process connection and security records to deliver and protect the website. This website activity is separate from the app's local processing.
If you contact the developer using an email app, you choose what to include in your message. Your email provider and the recipient will handle the message you send. HingeGlass does not automatically attach local diagnostics or an app list.
Privacy inquiries
Privacy inquiries: use the developer contact email listed on the HingeGlass Google Play listing.
Policy updates
This policy covers HingeGlass 1.0.0 and the 1.1.0 update. Features introduced in 1.1.0 apply only where that version is installed. If the app's data handling changes, we will update the policy and its revision date. The app also contains privacy information that can be read without opening this website.