The best Dual N Back app is now free. Enjoy.

IQ boost is a brain game based on the only proven IQ boosting activity.

IQ boost is based on the Dual N Back exercise. The Dual N-Back task is the only mental activity that has been proven to improve your short-term memory and fluid intelligence. Read the Wired article http://tinyurl.com/6q2y76

IQ boost is very challenging and requires some dedication to get good at. However it is enjoyable and rewarding once you understand how to play.

Features:

- Improved game tutorial
- Adjustable difficulty levels (1 through 9)
- Detailed reporting of your progress as you improve
- Audio or Visual only practice modes
- Optional in game feedback
- Post your high score and show off your big brain

IGN Rated IQ boost an 8/10 “Impressive”

http://tinyurl.com/3stcuv

Support:
Please email support@tnxbai.com if you have any problems, suggestions, questions or you would like to report a bug.