OneSignal is a free push notification service for mobile apps. This plugin makes it easy to integrate your Ionic, PhoneGap CLI, PhoneGap Build, Cordova, or Sencha Touch app or game with OneSignal. Supports Android, iOS, and Amazon's Fire OS platforms. https://onesignal.com
See https://documentation.onesignal.com/docs/cordova-sdk-setup for setup documentation.