Historically Ive chosen to spend a good portion of my idle time playing games on my phone.. When I could be choosing to be productive. CogniFit give the user the ability to satisfy their hunger for playing games, while training your brain to expand while doing so. Definitely give this app a shot.
((I do like the interface, but expect the graphics of the game to become more refined over continuing updates))
Shahajqkqkn about CogniFit - Brain Training