Apps on the iPhone 5s Crash Twice as Often as on the iPhone 5 ans 5c
According to Crittercism (via
A representative for Crittercism suggests that crashes are more likely to occur on the iPhone 5s because developers were unable to check compatibility with the latest iPhone and its new 64-bit A7 processor ahead of its launch. Testing for iOS 7 on 32-bit chips has been possible since the first beta was released at Apple's annual Worldwide Developers Conference in June.
Anyway, I hope that the developers will soon fix all the compatibility issues and iOS 7 on the iPhone 5s will become more stable.