It is a simple calculator with no complex functions at all.
Features:
1.Addition, subtraction, multiplication, division, percent operation
2.Recording and recalling calculation results
3.The numbers, operators, parentheses, results Custom colors
4.Use touch sound

The average person rarely uses complex and complex calculators or scientific calculators in everyday life.
Most are very easy to use for general calculations and most need a simple calculator.

I recommend it to those who need an easy and simple calculator without complex functions.