问题
Is there any cost for using the Push Notification Service?
I know it requires using my own server to send notifications, but the signals are passed through an Apple server. There are no server transfer fees?
回答1:
No, there is no cost. The only "gotchas" are that your app has to be in the app store(i.e. no jailbroken apps), and you have to maintain a server for pushing the events.
回答2:
If you are building you own push server, which you mention above, there are hosting expenses and the cost of time to set up and administer it. Alternatively, you can use a service like iLime (www.ilime.com), which provides a RESTful API and a lot of free push alerts up-front to handle the server infrastructure for you.
Disclosure: I work for KeyLimeTie, who produces iLime - let me know if you have any questions.
Best wishes integrating APNS into your app, however you choose to do so.
Tim
来源：https://stackoverflow.com/questions/2144678/is-there-any-cost-for-using-push-notification-service