This is documentation for the next SDK version. For up-to-date documentation, see the latest version (SDK 57).

Expo Application

A universal library that provides information about the native application's ID, app name, and build version at runtime.

Android

iOS

tvOS

Web

Included in Expo Go

expo-application provides useful information about the native application's ID, app name, and build version at runtime.

Installation

Terminal

- npx expo install expo-application

- yarn expo install expo-application

- pnpm expo install expo-application

- bun expo install expo-application

If you are installing this in an existing React Native app, make sure to install expo in your project.

API

import * as Application from 'expo-application';

No API data file found, sorry!

Error codes

Code	Description
`ERR_APPLICATION_PACKAGE_NAME_NOT_FOUND`	Error code thrown by `getInstallationTimeAsync` and `getLastUpdateTimeAsync`. This may be thrown if the package information or package name could not be retrieved.
`ERR_APPLICATION_INSTALL_REFERRER_UNAVAILABLE`	The current Play Store app doesn't provide the installation referrer API, or the Play Store may not be installed. This error code may come up when testing on an AVD that doesn't come with the Play Store pre-installed, such as the Google Pixel 3 and Nexus 6.
`ERR_APPLICATION_INSTALL_REFERRER_CONNECTION`	A connection could not be established to the Google Play Store.
`ERR_APPLICATION_INSTALL_REFERRER_REMOTE_EXCEPTION`	A `RemoteException` was thrown after a connection was established to the Play Store. This may happen if the process hosting the remote object is no longer available, which usually means the process crashed. See this StackOverflow answer on `RemoteException` for more information.
`ERR_APPLICATION_INSTALL_REFERRER`	General default case error code for the `getInstallReferrerAsync` method. This error code will be thrown if an exception occurred when getting the install referrer, but the exception was none of the more precise errors. The `responseCode` is provided along with the error.
`ERR_APPLICATION_INSTALL_REFERRER_SERVICE_DISCONNECTED`	Connection to the install referrer service was lost. This error is thrown when an attempt was made to connect and set up the install referrer service, but the connection was lost. See the Android documentation for more information.