Lean Mobile App Development

Crash reports

We test each release candidate before we ship it, but a crash can always happen in the wild despite all our testing. If so, then Crashlytics comes to the rescue. It is easy to implement and it gives you a lot of insight (including a stack trace) on crashes:

func application(application: UIApplication,           
     didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {         
        ...         
        Fabric.with([Answers.self, Crashlytics.self]) 

In the following example, you can see how the number of crashes freely dropped to an unacceptable level. We localized the problem and released a new version. This resulted in the number of crash-free users to go up, nearly 99% or even higher. It is nearly impossible to satisfy everyone. The nature of ...