Calculator is a beautifully designed calculator app that provides simple and advanced mathematical functions. It is easy to use and does things better than your phone or handheld calculator ever did. This app supports the four fundamental arithmetic operations, square, expression's parenthesis, and simple scientific operations such as trigonometric and logarithmic functions. It is quick and easy to use, and you can modify incorrectly entered expressions with a freely movable cursor. Calculator also keeps a history of your calculations for easy reference.

In addition to its key features, Calculator allows you to easily convert various types of units, such as length, weight, width, volume, time, temperature, pressure, speed, fuel efficiency, and the amount of data. This app supports all unit conversions commonly used in everyday life. Best of all, Calculator is free forever.