# SERVICES

- [App](https://docs.ult.dev/services/app.md): This service provides core methods associated with the application. It also exposes events for low-memory conditions and activity state changes.
- [Platform](https://docs.ult.dev/services/platform.md): This service provides information about the OS or runtime platform on which the app is running.
- [International](https://docs.ult.dev/services/international.md): This service provides interfaces related to globalization (g11n) and internationalization (i18n).
- [Accessibility](https://docs.ult.dev/services/accessibility.md): This service provides methods and events related to accessibility. Sometimes it’s important to announce state changes in the app for visually-impaired users.
- [Clipboard](https://docs.ult.dev/services/clipboard.md): This service provides access to the device’s clipboard.
- [Storage](https://docs.ult.dev/services/storage.md): This service provides a simple key-based local storage mechanism. If you need more powerful options to persist data, consider using the database extension.
- [Location](https://docs.ult.dev/services/location.md): This service provides access to the device’s geolocation data.
- [Linking](https://docs.ult.dev/services/linking.md): This service handles deep linking in both incoming and outgoing directions. Incoming deep links instruct the app to take actions requested by other apps.
- [Alert](https://docs.ult.dev/services/alert.md): This service displays an OS-specific alert over the top of the current screen. The appearance of the alert is dictated by the underlying OS platform.
- [Modal](https://docs.ult.dev/services/modal.md): This service displays a view that overlays all other views rendered by the app, preventing any direct user interaction with the overlaid views.
- [Popup](https://docs.ult.dev/services/popup.md): This service is a collection of methods that allow the app to display a view that overlays a portion of the screen.
- [StatusBar](https://docs.ult.dev/services/status-bar.md): This service provides control over the device status bar at the top of the screen on mobile platforms.
- [UserInput](https://docs.ult.dev/services/user-input.md): This service provides events that are triggered when specific user input events occur.
- [UserInterface](https://docs.ult.dev/services/user-interface.md): This service provides a variety of UI-related methods.
- [UserPresence](https://docs.ult.dev/services/user-presence.md): This service provides information about whether the user is currently present.
- [Network \*](https://docs.ult.dev/services/network.md): This service provides access to the device’s network data.
- [Navigator \*](https://docs.ult.dev/services/navigator.md): This service provides a way for the app to present a virtual stack of “cards”, allowing the user to push or pop those cards onto the stack in an animated manner.


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