I use both Mac and PC and I actually found Listary because I was looking for a PC alternative for Default Folder on the Mac. Now it depends what you use Listary for but I was looking for a program that would allow me to quickly navigate on my file system on the PC, and Listary is perfect for that. If that is the functionality that you are looking for, then Default Folder is a fabulous program. However, Listary has other functions as well and depending which ones you are looking for, there are other programs on the Mac that can do that as well. In the old days there was “Quicksilver”, but the suggestions mentioned by others above like Alfred and Launcher probably fit the bill. Of course Spotlight can also do the job but maybe lack the bells and whistles.