Allows to search, install, remove and update Appimages from AppimageHub.com easily via a terminal commands.
$ app search SEARCHTERM (shows you available appimages according to your SEARCHTERM)
$ app install APP-ID (downloads and installs an appimage)
$ app list (returns a list of installed appimages)
Install means the Appimage gets downloaded and put into ~./Applications folder and a menu item added.