I used an app called Flashcards Lite, and liked it. I liked it because it let me draw in mathematical equations onto flash cards. I thought this was the paid version of that app so was expecting all the functions of that app plus some.
Unfortunately the drawing on cards feature, which was the one function I bought this for, isnt included. You can draw on paper, and photograph it, but I bought the app so I didnt need a pen and paper!
I still gave it three stars because it looks like most users will like it, but I just wasted $4 on an app which I will probably never use.
Glmory about Flashcards Deluxe, v4.6