App is great, but glitchy – Wolfram Multivariable Calculus Course Assistant Review

I bought this app to help me with simple Calc 3 graphing and vectors etc. It really is a great app, but I wish it would plot simple points and vectors in 3-space. Instead you can only graph more complex equations. The app recently began to get glitchy on my iPad. I open it, and it won't let me select anything, it froze. I turned off my iPad and completely closed out of the app, and it still isn't working. But when it does work, it's vey helpful.
Review by Kmbal on Wolfram Multivariable Calculus Course Assistant.