You will be presented with questions from the set of official DRPCIV questions, and after the answer you will evaluate the difficulty of the question using a form - a scale from 1 to 6.Once you rate the difficulty of a question, the app calculates when it needs to be recalled so that it stays in your long-term memory.Thus, in the exam you will be able to easily remember the questions.The memorization technique used is called spaced review.