Add Push Notification to my ios iPhone app

I have two apps that are fully working in the app store. I want push notification added to my two iPhone apps. The push notification needs to send text to all users who have installed my apps . You will have to add the push notification code to the app code (and upload finished code to my developer account) the server I use for push notification is www.alertrocket.com. The server side code and interface will need to be uploaded to [login to view URL]