1. A good way to revise and study.contains wronged answers as (What's the commonest ALL? the answer is M5 , M4 ??!! )It is a good lerner appgoodIt's a guideline for revision and to learn new stuffsSuperbExcellentmarvelousOutstandingIt was good and it taught me a lot and I am only 14 and it's good and I didn't know there was so information but it was good with all those questions thanks.
2. I love it, great way of giving answers, short, simple and straight to the point.