How to turn on automatic app updates in iOS 7
One of the headliners in iOS 7 is the auto- matic update of apps. However, this function is not a preset when you have installed iOS 7. Here is how to activate it:
Go into “Settings”, choose “iTunes & App Store” Under “Automatic Downloads”, swipe on “Updates” so it lights up green.
That’s it, now you apps will be updated automatically.