The Big Nerd Ranch Blog

Designing for iOS used to be simple because previously, there was only one phone size. Fast forward to the present day; we now have an array of iPhone and iPad devices, all with different screen sizes and orientations. Aside from the physical devices, themselves, we also have software features that increase the number of sizes your application can appear in, like Split View and Slider Over. To help designers and developers manage these various permutations, Apple has introduced Size Classes which organize all of these screen sizes for each device and orientation into two categories.

Lots of people have been calling Apple’s new iOS 7 design “flat,” but to me, that’s oversimplifying Apple’s intent.