Inventive math puzzle game – Summation Review

I've been playing this for months now. It reminds me a lot of Kakuro or Cross Sums (Dell) in that you have to figure out what combination of the given numbers will equal the sums. It's not easy. But it's not impossible. You can buy clues 10 clues for .99 or you can earn 3 clues by watching ads. Every once in a while you get a chance at 5 clues if you watch an ad. The ads aren't intrusive or constant. And I really love the developers for this. It's clear their not out to annoy the crap out of you for the sake of advertiser dollars. The ONLY thing I would like is the option to buy more clues at a time. This is a great calming activity.
Review by Generic on Summation.