Great app, still place for improvement – Wolfram Calculus Course Assistant Review

This app is fantastic. I finally got to understand some integrals. I must say, however, that it has some flaws, like the glitchy backspace button, or the difficulty of inputting some hard integrals, or the fact that on wrong input it deletes the already written integral, so I have to rewrite the whole thing. Otherwise, great app.
Review by Robert N. D. on Wolfram Calculus Course Assistant.