$cordovaFileOpener2.appIsInstalled does not exist in iOS

[gerhardcit]

$cordovaFileOpener2.appIsInstalled('com.adobe.reader').then(function(res) {
      if (res.status === 0) {
          // Adobe Reader is not installed.
      } else {
          // Adobe Reader is installed.
      }
  });
``` does not work in IOS because the native plugin does not support that in iOS.