For one I expected these models to be viewable in 360°. For two this app could use MUCH more motion that it advertises. Image quality is kind of garbage and should be much finer so as to be able to easily discern the muscle fibre directions, for example.
Not a complete waste, however. Thorough in what it does, and the developers had a great idea making sure the muscles were all layered properly, superficial to deep.
Freefly VR about Anatomy In Motion - Complete - Muscle System Flashcards for iPhone and iPad, v2.5