[iPhone God App] It was found using the Coin Math Free actually

Best coin learning game in the App Store! Learn to recognize pennies, nickels, dimes and quarters. Learn to count in groups of 5, 10 and 25. Learn to shop and to make change. Great for learning coins. Great also for adults!

Reviews from the full version of Coin Math:

"We gave this application to several children ages 4-8. All of them liked this application best of the coin counting applications we looked at. It can be used either at home or at school for learning to identify and count coins, and learning to make change. It can also be used to learn or reinforce counting by 5's, 10's and 25's. As a teacher/parent, I appreciated that both sides of the coins were used within the application, and the coins were to scale. The kids quickly noted that they looked like real money."
- I Education App Review: http://www.iear.org/iear/2010/4/12/coin-math.html

“This is truly an app that puts math to use in the “real world” by asking players to make correct change for a customer with an easy-to-operate point and drag system.”
- iKidApps.com: http://ikidapps.com/profiles/blogs/5-iphoneipadipod-touch


"BTY, I absolutely love the point and drag feature that came with the update and the proper proportions for each coin as well :) very nice. When I was looking for an app this as the best money counting one I saw, nice job :)" - Email from a user.

"This simple matching game is ideal for slightly older kids." - http://www.babble.com/kids-iphone-apps/math-whiz/

"App works well for my 1st grader. He loves to use it and it's helped him improve his coin math. Great to introduce when doing homework." - Review from user