Just sum the numbers and reach the highest value!
Compete with friends to see who reaches the highest value through Game Center and Facebook.
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The 123 Sum! app game is now available for $0.99 on iOS. The app is compatible with iOS 7.0 or later on the following devices: iPhone 7, iPhone 6, iPad 3, iPad Mini and iPod Touch 5G or newer.
Download 123 Sum! and play on your iPhone or iPad. You can find links to download the app here.
Developer site: Support