This is a simple calculator that you can use to do basic calculations as well as calculating percentages, complex expressions in parentheses.
The calculator is ideal for business people who value their time.

- If you want to round a number to the nearest large block, such as thousands, hundreds, tens, or units, select the digit in the settings to display more or less digits.
- Previous calculation results are saved in history, you can return to them at any time.
- Customize the look of the calculator according to your mood or iPhone theme.