Leave a Review NineGaps
Unmatched simple brilliance
If you're pretty good at math, this is a game that's beautifully challenging and beautiful to look at as well. Perfection.Very disappointing.
This app is very disappointing! I bought it in the hope that it would help me to become quicker at mental arithmetic, but this app is wrong! It tells me I'm wrong when I know I am right!!
I don't know whether this app is faulty or a scam, but it's definitely not worth the 69p! Doesn't even deserved any stars but I have to put one cause then it won't let me write a review!!Show lessNineGaps
Great brain teaser and easy to use as a short time killing app