this game is really fun! I first played it in school (not on an app) and I loved it. I was really happy when I found out there was an app for it! it’s a really great game to just pass the time. the only issue, in my opinion, is how you have to click the number all the in the top right corner and then click on the boxes. if you’re on a roll finding all the numbers, you have to keep clicked the number in the top right then clicking the box and back and forth and back and forth again. it’s just really annoying to do that. I wish you could click the box first and then click a number that shows up when you click the box. other than that, this is a great app that I would totally recommend!