I need to code an iOS app that sends data to server every 30 minutes. Can this work when the app is in the background? How reliable it can be?
There's no way to do it as service except some special cases provided by ios, as https://stackoverflow.com/users/1515108/im-lp said. But you can simulate it. This post answer how to:
https://stackoverflow.com/a/19121250/2835520
I hope it's gonna help!