Since the OS 11 update on a user's iPad, the Pocketcloud Pro app will not open - tried uninstalling the app with hopes of reinstalling, however, the app is not currently available in the iTunes store.
The PocketCloud link that was created on the developer's website leads to a page that appears to be discontinued. This means the software itself is discontinued as well. This could be a reason why the software isn't or won't be available for the new versions of the iOS.
As an alternative solution, install TeamViewer and you can have the same features previously available in the Wyse PocketCloud.