Windows 8 and iOS 7 are compared. Windows 8 was released in 2012 featuring a new "Metro" tile-based interface and was designed to bridge computers and touch devices. iOS 7 was released in 2013 and featured a redesigned user interface. Key differences are that Windows 8 comes preinstalled on PCs while iOS 7 is available on Apple mobile devices only. Both operating systems focused on simpler, more useful designs and connectivity across devices.