Useful!
As a University student in an organic chemistry course, this is an incredibly useful to learn and draw. Also great for creating molecules to practice IUPAC nomenclature. It would be nice if there was a way to export to Dropbox in various file formats (.mol, PDF, JPEG, etc.). As it stands now however, this is a fine app which is definitely worth three dollars. Money well spent!
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Productivity issue
There should be a way to, through the iPad, easily transfer .mol files between the two apps, Builder and Draw. Also, handling the controls takes a bit of getting used to.
