Tid Bit TechieVarta

Can you add 2+2 or 5+3? Wait till you try BrainTuner from http://gengarstudios.com/. It is an absolutely addictive application where you continuously challenge yourself in game of maths trying to beat your previous time and in rush to beat timing you make mistakes answering these simple questions.

Gengar Studios offers both free and premium versions. The permium version is $1.99 and offers more options+global high score. So give your mind a spin and see if you can add 6+3.