價格：免費
檔案大小：33 MB
版本需求：需要 iOS 7.0 或以上版本。與 iPhone、iPad 及 iPod touch 相容。
支援語言：英語
This is not your average calculator.
This is a mean calculator.
[ How to play]
Get the values to be equal.
Don't use the red buttons.
Solve each puzzle before your battery runs out.
支援平台：iPhone