I have downloaded almost all five of these. I am still working on this first one and I am usually good with words. With that said, this makes an awesome set of apps for a nice mental workout.
Not showing right answer It is not showing Right answer
Need right to correct wrong word
Excellent Great app
Very useful app
March 2015: Update for Lollipop
Updated for gingerbread, ice cream sandwich, and jellybean.