What is it about this calculator app that people love so much? There is a lot to like about it, but we think the best thing about it is the fact that it is free and can be downloaded on Google Play. It is one of the best calculators for Android devices, and it can be used to calculate a lot of different things. You can easily add, subtract, multiply, and divide. You can also add the square, cube, and fourth root of a number. You can use the calculator to find out the area of a circle, the volume of a box, and the surface area of a triangle. You can also use it to calculate the distance between two points, the angle between two lines, and the angle of a triangle with another angle.