This app is the first in a line of tap review apps. In addition to the standard 2.718 flash card style, this app goes beyond and allows the user to tap a diagram of the neuron and review it in this way. Biology is such a fascinating subject and is much more of a visual science than physics or chemistry, so the tap review feature becomes a perfect fit. For a young biologist, this is a great little unit review for the road. Good luck.