While the most obvious change in iOS 7 is the look and feel of the user interface, Apple's engineers have packed the update with numerous changes both big and small. Here are a selection of changes noticed by folks in the MacRumors Forums and elsewhere. Cellular Data Tracking by App - In Settings / Cellular, users can track cellular data usage on a per-app basis. Apps can have their cellular data access disabled individually as well. Update Apps Manually - The App Store now updates apps automatically, but for users who prefer to handle things themselves, automatic update
