Colorful Calculator, come and choose your favorite color! If you like this app, please buy Donate version to support our development - Two modes ( Traditional / Formula ) for selection - Support for using % ( Percentage ) - Enter each operator symbol will calculate and display the answer, and also display complete formula on top in formula mode - Intelligent automatic correction input error (for example, automatically fill in right parentheses) - Support drop-down display history - Can paste on Lucky icon or custom icon - Button can set vibrate/beep - Can set to keep the screen on - Support landscape screen - Automatically adjust the font size of the screen - 4 button skin

- fix bug