Along with the iPhone 5s being a big seller, the new Apple handset has another not so welcome feature: its apps crash twice as much those on the iPhone 5c or iPhone 5.
The likely culprit: the iPhone 5s's 64-bit A7 processor coupled with the 64-bit iOS 7 operating software and existing 32-bit apps. Apps running on the 64-bit iPhone 5s have a two percent crash rate.
That's compared to just one percent for apps running on the iPhone 5c or iPhone 5, which use the previous-generation A6 chip and a 32-bit version of iOS 7...