5 stars: Simple and functional, without being overloaded with unnecessary graphics, this app has a diverse range of snappy brain-training exercises. The free version has a sufferable amount of advertising intrusion.
4 stars: The flow of the game and the games are challenging but fun. Very nice to see where I fall into compare to my age group. The amount of adds gets irritating. But an overall great game. Home page needs to be simplified and not look so busy.
4 stars: I really enjoy this game. I paid for the upgraded service and though I have changed phones often I've always been able to reactivate it. Until now:( I am having some email issues so it could be the trouble, but I like playing for a bit!
3 stars: I don't know what happened or if this is the same game I used to play as a child but the game interface changed dramatically and it's just not aesthetically pleasing. There's a lot of distractions, specially the ads. The pictures should've been icons instead. I'm disappointed but the tests are the real deal.
3 stars: The selection menu design is terrible and messy but the games aren't that bad. Just some annoying noises while playing keeps me distracted and gets me kinda irritated I wish there was an option to stop those without muting the phone or muting the taping sounds.
2 stars: Some games like math operation, attention training,self ordered learning objects are so easy, but difficulty level needs to be increased otherwise game is good
2 stars:...