Calculator very fast and simple is a free and easy-to-use application for Android that combines the functions of a basic calculator and a scientific calculator. It can perform many calculations, such as adding, subtracting, multiplying, dividing, and percent calculation. It also has a color-changing function. You can customize the colors of the calculator and change them to the ones you like. It has a convenient and simple user interface, making it very easy to use.

The scientific calculator has the ability to perform advanced calculations, such as nth power, nth root, and power of E. It also has the ability to perform calculations to the power of 10, the power of E, and the square. It has the ability to perform calculations to the square, the square root, the natural logarithm, the common logarithm, the binary logarithm, sine, cosine, and tangent.