Rectangle - Window management app based on Spectacle, written in Swift.
GridMove - GridMove - A window management tool that can quickly arrange your windows into desktop grids.
AquaSnap - Too many windows on your screen? Stop wasting your productivity.
WinDock - WinDock is a window manager ideal for large, or multi-monitor setups. Features:
WindowGrid - Quickly and easily layout windows on a dynamic grid using just the mouse.
Mizage Divvy - Divvy is an entirely new way of managing your workspace.