Awesome Fringe Apps (Like Brain Age)

[Tay]

The older I get, the more I appreciate the fringe uses for a handheld gaming device. On my Vita I'm a total nut about the strange discovery app series they're putting out (like Wake Up Club). On my 3DS, however, I'm really enjoying things like Art Academy (learning art skills!), and, especially the new Brain age game: Concentration Training (or devilish training).

This game has actually helped me in school, with learning the kanji, and more. Are any of you playing this or other Brain Age games?

Know of any awesome 3DS/Vita apps? (or even Android/iOS?)