Paintbrush(simple paint program for Mac OS X) This can be said as a Mac version of MS Paint.It. This is PaintTool SAI running on Mac OS X. Paint tool is an industrious and small tool similar to photoshop but awsome for manga and anime images as well as other photo editing. MyBrushes, an excellent paint program for Mac, is a good alternative to Microsoft Paint and Apple Mac Paint. MyBrushes Paint for Mac app is the best Mac paint tool to paint on Mac infinite canvas and PLAYBACK whole drawing.