價格：免費
檔案大小：1.2 MB
版本需求：需要 iOS 3.2 或以上版本。與 iPhone、iPad 及 iPod touch 相容。
支援語言：英語
Think of a number between 1 and 9
Double it
Now add 8 to that number
Divide your new number by 2
Subtract your first number from this number
Your new number is 4
Hypno Digit will blow your mind with 6 more of these. Use this app for yourself or impress your friends by making them think your psychic.
支援平台：iPhone, iPad