问题
Do you need to pay for a subscription to enable your iPhone app to receive push notifications?
I'm looking to create an app that allows the client to push notifications to all users who have downloaded that app. For this to work, do you need to pay for a subscription to a push notification server or something like that?
回答1:
You will have to create your own server to communicate with Apple servers. You can also use Urban Airship and communicate with them via their API: http://urbanairship.com.
More info here: http://developer.apple.com/library/mac/#documentation/NetworkingInternet/Conceptual/RemoteNotificationsPG/ApplePushService/ApplePushService.html
回答2:
You can build and host your own push server or use a paid service like UrbanAirship or Xtify to handle your push notifications.
Those two services offer a lot of features such as rich notifications, geofences and analytics that might make a paid push notification provider more attractive than doing it yourself.
来源：https://stackoverflow.com/questions/12057635/push-notifications-for-iphone-app-paid-subscription