Blog Critics Magazine also reviews Keep Your Word
And they also say some nice things about it. The bottom line is, they think it is a bit expensive but:
… this title does everything one could want a flash card application to do, and it’s hard to imagine another app that does it better. If it’s worth going digital with your learning tools at all, then it’s worth the cost to get the right one, and Keep Your Word might well be the right one for you.
Not bad at all.