Washington, Jan 28 : Apple Chief Financial Officer (CFO) has said that 80 percent of all iOS devices have now been upgraded to iOS 7.

Peter Oppenheimer said that this will make it easier for developers to create apps for the platform, Cnet reports.

However, the latest version of iOS has invited mixed reactions due to the radical changes of the design with a more flat, minimalist view favored by Apple design guru Jony Ive. (ANI)