Great, some suggestings – Numbers Puzzle Review

I love this app, and there are things I would like you to add, but I won't let it stop me from rating 5 stars. 1) timer to time solves 2) a 6X6 puzzle added; I can not find one on the Internet ANYWHERE! But it is very good, hard to beat, especially when it's free.
Review by Alex Heitzman on Numbers Puzzle.