Nearly half of iPhone and iPad users have already upgraded to iOS 8 in the first week, but if you’re looking for stability, you might want to stay for a few weeks more.
Crash analytics data from Crittercism found that iOS 8’s crash rate is 78 percent higher than that seen on iOS 7, with an average crash rate of 3.56% across all devices.
The fact that iOS 8 isn’t as stable as iOS 7 yet isn’t surprising, given how much longer iOS 7 has been in development. Looking deeper into the numbers, it was discovered that older devices are more susceptible to crashing, with the iPhone 4, 4s, 5, and 5s averaging a 3.57% crash rate.
The iPhone 6 and 6 Plus are the most optimized for iOS 8 and have significantly lower crash rates of 2.63% (iPhone 6) and 2.11% (6 Plus). The crash rate for iOS 7 is 2.0%.
System crashes are a combo of both bugs in iOS 8 and buggy apps that haven’t been optimized for the new mobile operating system. As iOS 8 matures and developers clean up their code, we should see those crash numbers improve. Apple already has an update for iOS 8 that’s rumored to release soon.