挑战24点-益智休闲 app analytics for January 6

24 points is a kind of puzzle and entertainment mini game to be played. The rules are as follows: use addition, subtraction, multiplication, division and parentheses to obtain 24. Each card must be used once, but cannot be used repeatedly. App Provide Functions: 1. random number to calculate 24 2. get hint 3. choose challenge degree 4. check challenge record, share to others 5. custom card image