Memorand is a game that tests and improves your number memory. It is endless, so it's suitable even for the brightest minds. The game is offline, so you could enjoy it without any internet connection. The best part is that you can see if you are the best player with the highest score in the Score menu. And if you need diamonds and buy them, or watch ads to get them, at least 10% from earned money will be donated and used to save caged and orphan bears.