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n-back

Description

Good brain trainer app for improving your working memory.??? USAGE ???1. Select level (1-10).2. Remember the answer of easy addition for the level times.3. Continue remembering and tap the last digit of the answer of n times before (NOT current answer).If you don't know what is N-Back, please see below.http://en.wikipedia.org/wiki/N-back
Release Date: September 30, 2012