Our website provides a free download of AROW 1.0 for Mac. This Mac app was originally created by Lighten Software Limited. AROW for Mac is included in Theming Tools.
From the developer:
AROW is a quick way to organize open windows on your Mac OS X. You can instantly resize, position, arrange windows, simply by dragging them to the edges of your screen.
Depending on where you drag a window, you can maximize your windows, position them side by side, take up half screen etc., AROW makes reading, organizing, and comparing windows so easy.
You may want to check out more software for Mac, such as Fantastic 4 In A Row or Fantastic 4 In A Row Free 2, which might be similar to AROW.