IPhone 5C the first three days, which set a record for first weekend smartphone sales, with the 5S selling three times more units than iPhone 5C. After the first day of release, 1% of all iPhone in the US were iPhone 5S, while 0.3% were iPhone 5C.<ref name="cnet iP5S/C sales 1"></ref> Commentators viewed iPhone 5C as a flop because of supply chain cuts signifying a decline in demand in October 2013. Apple CEO Tim Cook admitted that the company overstocked the iPhone 5C while having shortages of the iPhone 5S, as a result of failing to anticipate the sales ratio between both
IPhone 5S iOS 7 and OS X Yosemite (version 10.10) noticeably departs from skeuomorphic elements such as green felt in Game Center, wood in Newsstand, and leather in Calendar, in favor of flat, colorful design. iOS 7 adds AirDrop, an ad-hoc Wi-Fi sharing platform. Users can share files with the iPhone 5 onwards, the iPod Touch (5th generation), iPad (4th generation) onwards, or iPad Mini (1st generation) onwards. The operating system also adds Control Center, a control panel accessed by swiping up from the bottom of the screen. Control Center contains a number of commonly used functions, such as volume and brightness