Chemical Engineering AppSuite HD is a free chemical engineering app introduced for Apple iPad and iPhone. Using this freeware, you can find specification of materials, steam pressure and temperature data, thermodynamic and fluid dynamics tools and many more …. This app is free and available on itunes.
I want to introduce a package for drawing chemical structures i.e. ACD/ChemSketch. You can draw chemical structures including organics, organometallics, polymers, and Markush structures by this software. It is also possible to calculate molecular properties with this software. You can view the structures in 2D and 3D views. Another important thing is that this software is FREE . . .