I have an app which needs to communicate with a server (to refresh it\'s data) once every 24 hours. This needs to happen even if the app is not open, nor in the background.
With release of iOS 7 this is finally possible using Remote/Silent notifications. They work same as Push notifications but instead of alerting the user immediately they can fire up background fetch mode and upload/download new content.
Here is simple tutorial:http://www.objc.io/issue-5/multitasking.html