The Apple Push subscriber receives notifications from topics and delivers messages to an Apple iOS device, such as an iPhone or iPad. The subscriber pushes messages to an iOS app installed on the target iOS device by means of a cloud service—the Apple Push Notification Service.
Note: The Apple Push subscriber is one of two subscribers that can push notifications to a mobile device. For notifying Android devices, see Google Cloud Messaging Subscriber.
The following sections explain the steps for setting up the Apple Push subscriber: