Yes, if you download the plugin from the Unreal Marketplace then you don't need any compilation or Visual Studio/ Xcode projects.
Hope that helps!
Scratch that...apparently with plugins enabled you still have to use RemoteBuildTool or package from a mac. Oh well. At least with GS you don't have to travel to a new room in order to do a RT session, so I can test by "launching" it on my iPhone. Thanks again for you help!