I can't look it up right now, but I think it's called "Library Support" or something? Anyway: When I was writing a program for Mac OS I had to choose the name of the folder myself. Using the app name or bundle ID seems to be just a convention, I don't see the difference to %AppData% on Windows or ~/.config on Linux.
Also I remember a tool I used when I had a Macbook which helped you remove all the files when uninstalling something. I think it was this one: http://www.macupdate.com/app/mac/25276/appcleaner
I remember some programs even putting files in other directories than Library Support.
Also I remember a tool I used when I had a Macbook which helped you remove all the files when uninstalling something. I think it was this one: http://www.macupdate.com/app/mac/25276/appcleaner I remember some programs even putting files in other directories than Library Support.