title: Identify when the app crashes
body: <p>Likewise  that have functions in Objective-C to know when the screen will Appear, or When the User exit the app, or receive memory warning, I believe there is a way to know when the device will give crash. </p>
  
  <p>If this function exists, I could create an alert will notify the user that the application has an error and the logs would be sent to my email, I wonder if this Possibility exists?. </p>
  
  <p>Grateful.</p>