A very powerful tool – iMolecular Builder Review

This application is loaded with features for constructing and viewing molecules. As the author of a "competing" application, Molecules, I can say that this one has many features that I will most likely never implement in my own program. The carbon nanotube and crystal structure generation alone could make it very interesting to a few classes of users. If you are a chemist, materials scientist, or even student, I think you'll get your money's worth out of this application.
Review by Brad Larson on iMolecular Builder.