Sep 20, 2016

►9/2016: Now you cancreate custom flash cards for free
►1/2014: New estimation pack is added where you can estimate operations with big numbers
►12/2013: In first four levels, numbers are aligned right for easy mental calculations
►11/2013: New cash reward program (free) for younger brains
►10/2013: App is optimized for tablets and many UI enhancements