Apple is making the push for iOS developers to adopt the iOS interface and standards. Chuong Nguyen writes on gottabemobile.com
The company has advised iOS developers that all apps submitted after February 1, 2014 must be optimized for iOS 7 and built using Xcode 5. The move would at the very least remove visual fragmentation in the way apps look and feel for the iOS operating system.
This is Apple’s plan to fight fragmentation of users who have not upgraded to the latest versions of iOS. There is still a significant installed base of iPods and iPhones with iOS 6 and 5.