I haven't really used it, but from what I can tell it seems to serve the same purpose as Moom/SizeUp/Divvy/Spectacle/Slate/ShiftIt with regard to windows (i.e.

I haven't really used it, but from what I can tell it seems to serve the same purpose as Moom/SizeUp/Divvy/Spectacle/Slate/ShiftIt with regard to windows (i.e. moving and resizing). Amethyst (an automatic or dynamic tiling window manager), on the other hand, automatically arranges windows according to predefined tiled layouts (like XMonad, Awesome, etc.). What I'm trying to explain might become more clear if you watch [0], wherein you can see that all windows on the (virtual) desktop are adjusted in size and position in response to opening or closing other windows. [0]: https://www.youtube.com/watch?v=AyNkBLhIpQk https://www.youtube.com/watch?v=AyNkBLhIpQk