If your unsure whether you want to buy this or not, Heres a way to decide:
Do you like simple math problems, and reading things, or Sudoku? This is a great game for you.
Are you looking for more of a 'game' than a tool? wait another 2 months for "Big Brain Academy" to come out.
Anyone else, you shouldk now if you would like this type of game or not.
Great fun. Sudoku keeps the mind challenged for hours.
Also: Although it doesn't measure your memory it does test it and make you remember such as each day before you acn play Sudoku it will ask you a quesiton such as "What did you eat for dinner last night", and each day before you can test your brain age it will have you draw pictures of things such as animals and continents.