One of my teachers used to say: "You attempt a question, you know the right answer- not a big deal. You attempt a question, you know why others aren't the answers- that's a big deal". And this is the principle that MedAngle follows. Each explanation makes you able to identify the wrong answers to a question. This is the best feature as a question bank beside an intuitive UI. It would be much more appreciated if all these features are squeezed into a pocket-sized app with limited offline features to continue practice anywhere.