title: How to check if Apple Maps is installed
body: <p>Anyone aware how to check whether Apple Maps is installed or not? I could not find anything in the docs.</p>
  
  <p>With iOS10 users can delete the Apple Maps application. While for Google Maps we can use <code>UIApplication.shared.canOpenURL()</code> to check if it's installed. I am not aware of such a thing exists to check for Apple Maps.</p>
  
  <p>Of course one can check if opening a <code>MKMapItem</code> with <code>mapItem.openInMaps()</code> fails - but that does not help for checking in advance.</p>