Social share, sending simple data to other apps.

Provides a way to launch Android intents, e.g. opening a specific activity.

Provides an interface with the OpenID library AppAuth

Provides access to the system's UI/app for sending SMS messages.

Provides access to the system's web browser and supports handling redirects. On iOS, it uses SFSafariViewController or SFAuthenticationSession, depending on the method you call, and on Android it uses ChromeCustomTabs. As of iOS 11, SFSafariViewController no longer shares cookies with the Safari, so if you are using WebBrowser for authentication you will want to use WebBrowser.openAuthSessionAsync, and if you just want to open a webpage (such as your app privacy policy), then use WebBrowser.openBrowserAsync.

Provides access to a hardware device's accelerometer, gyroscope, magnetometer, and pedometer.

Expo module that provides access to Segment mobile analytics

Allows scanning variety of supported barcodes both as standalone module and as extension for expo-camera. It also allows scanning barcodes from existing images.

Provides a way to encrypt and securely store key–value pairs locally on the device.

Expo universal module for random bytes

Utilities for using Processing.js on Expo

Provides an API for iOS (AirPrint) and Android printing functionality.

Allows you prompt for various permissions to access device sensors, personal data, etc.

Provides support for payments through Stripe and Apple Pay on iOS (in ExpoKit and bare apps), and Stripe on Android (plus Android Pay with ExpoKit and bare apps).

Provides access to user's media library.

Provides an API to compose mails using OS specific UI

Allows reading geolocation information from the device. Your app can poll for the current location or subscribe to location update events.

Provides an interface for native user localization information.

Provides an API for FaceID and TouchID (iOS) or the Fingerprint API (Android) to authenticate the user with a face or fingerprint scan.

Provides access to a database that can be queried through a WebSQL-like API (https://www.w3.org/TR/webdatabase/). The database is persisted across restarts of your app.

Provides support for the Google AdMob SDK (https://www.google.com/admob/) for mobile advertising. This module is largely based of the react-native-admob (https://github.com/sbugert/rea ct-native-admob) module, as the documentation and questions surrounding that module may prove helpful. A simple example implementing AdMob SDK can be found at https://github.com/deadcoder0904/expo-goo gle-admob

Provides a React component that renders a gradient view.

Provides an API to get and set screen brightness.

Provides a React component that prevents the screen sleeping when rendered. It also exposes static methods to control the behavior imperatively.

Provides text-to-speech functionality.

Provides access to the system's UI for selecting images and videos from the phone's library or taking a photo with the camera.

Provides functions that let you manipulation images on the local file system, eg: resize, crop.

Provides access to the system's haptics engine on iOS and vibration effects on Android.

Facebook Audience SDK integration

Provides access to Amplitude (https://amplitude.com/) mobile analytics. This module wraps Amplitude-iOS (https://github.com/amplitude/Amplitude-iOS) and Android (https://github.com/amplitude/Amplitude-Android) SDKs.

Provides an API for interacting with the device's system calendars, events, reminders, and associated records.

Enables native Google authentication features in your app! This module can only be used in ExpoKit, or a Standalone Expo app. For in-depth setup, check out this guide: https://blog.expo.io/react-native-google-sign-in-with-expo-d1707579a7ce