Version 2.0 of the CONCENTRATION GRID app
Version 2.0 of the CONCENTRATION GRID app* has been released – with performance enhancements/bug fixes and a POST TO LEADERBOARD function. * FOR IMPROVED PERFORMANCE BE SURE TO UPDATE THE APP VERSION ON YOUR MOBILE DEVICE (VISIT THE APP STORE) Test your skill with the mental focus grid exercise. Challenge yourself. Post your … More Version 2.0 of the CONCENTRATION GRID app