Best app for teaching Calculus – Crazy Shifu Calculus Review

This is the best app I have encountered to supplement traditional classroom teaching. There is no way a student can master calculus without solving lots of different problems with pen and paper. However, this app stays with the basics and reinforces the conceptual understanding that is invaluable for a student encountering Calculus for the first time. Many problems manage to be surprizingly deep and insightful! Very highly recommended!
Review by Clairybk on Crazy Shifu Calculus.