M - Calc is a compact calculator pursuing ease of use. You can erase the numeric buttons on the window assuming you want to operate with the keyboard. Since only numeric windows are displayed and do not take up space, it is convenient to use M - Calc while doing other work. You can freely change the font size of the numerical window.
If you stick to the design, you can create your own skin and apply it. Not only appearance but also calculation function are enriched. It corresponds to both general calculators and scientific calculators. A general calculator can be handled by the same key operation as Sharp or Citizen type. Unit conversion, date time calculation, loan repayment amount calculation are equipped with necessary and sufficient functions.