With my small-ish hands, even the iPhone 5’s 4 inch screen is too large for me to reach the back button in the top left corner of the screen with one hand. iOS 7 is very gesture driven, and has added edge gestures, which allow a user to go back a screen by swiping from the off the screen, on the left side of the phone. Joe Fabisevich is an indie developer creating software at Red Panda Club Inc. while writing about design, development, and building a company.