Color by Numbers is a computer app that is actually similar to some iPhone apps like the 3D Coloring Book app that we’ve covered, in the way that it to is a “virtual” coloring book. But lets face it, not every parent can afford an iPhone, nor are others quite ready to trust their little one with their iPod Touch or iPhone just yet. Fortunately, Color by Numbers offers similar functionality to other for-mentioned iPhone apps, but this app is for computers. In particular, Color by Numbers lets kids color in all sorts of animals, vehicles or princesses. That includes everything from from exotic birds to lions to submarines. Color by Numbers is available for PC, Mac and Linux for $9.99 for each series.