Android : Brain N-Back https://market.android.com/details?id=phuc.entertainment.dualnback&feature=search_result https://market.android.com/details?id=phuc.ente

Android : Brain N-Back https://market.android.com/details?id=phuc.entertainment.dualnback&feature=search_result https://market.android.com/details?id=phuc.entertainment.dua... It's well done with good features and free (I am using it since couple of weeks). I think it's a port of this open source project: http://brainworkshop.sourceforge.net/ http://brainworkshop.sourceforge.net/