Idea of iOS App Icon Shape Icon
This icon is made of a dashed line in the shape of a square with rounded corners, inside the square are two circles with one inside the other. Also inside the square is two lines shaped like an X they are drawn on top of the circles. The point they cross at is the center of the icon.
This page contains the iOS App Icon Shape vector icon, as well as variations of this icon in different visual styles, and related icons. All icons are in the flat vector style, however, differ by the line thickness, fill, and corner radius.