iOS 7 was a simplification of iOS in more ways than just getting rid of some skeuomorphic elements. It was a redesign of iOS from ground up. But it also felt a little short on feature improvement. But Apple has been adding more and more features to iOS 7, iOS 8 and 9, like continuity, extensibility, share sheets, etc. With iOS 10 that was announced a couple of weeks ago on in WWDC, Apple brings some radical new features to iOS.