AppGrid is described as 'Handle windows, from the comfort of your home row' and is a Window Manager in the OS & Utilities category. There are more than 10 alternatives to AppGrid for Mac and Windows. The best alternative is altdrag, which is both free and Open Source. Other great apps like AppGrid are Divvy (Paid), Taekwindow (Free, Open Source), HyperDock (Paid) and KDE Mover-Sizer (Free, Open Source).
?? Moves makes it easier than ever to position your windows *juuust* right. ? Just hold down your chosen modifier keys and move the mouse. No need to fiddle with 3px wide window edges or far way title bars.