title: WatchKit get data from closed App in iPhone
body: <p>There are some applications (example Runtastic) where is possible from the Watch to activate some function of the companion App even if the App is not running in the iPhone (never opened or closed). How is possible to make the same with my Apps (get general data or settings)? I read some documents from Apple about app in background but I don't find nothing about App closed. Can someone help me? Thanks in advance</p>