And no hint, and correct answer marked wrongly. Should be able to see actual answer after attempting quiz questions. Edit: I take this back. Input boxes work. And multiple ways of writing fractions are accepted, I tested this, and the camera recognition for handwriting works. There was one odd question in the first differentiation quiz which was ignored and I got marked 5/5?… even if it said incorrect?… plz check this. Edit 2: the app never displays hints.