Continuing the Android Authority tradition of building simple apps (see how to build an image gallery app and how to create an SMS app), we are going to build a simple but functional calculator ...

Digitalchemy is a developer on Google Play. They have three total calculator apps. The first is Calculator Plus. It’s a basic calculator that does everything you’d expect a calculator app to do.

Here are the best Android calculator apps like iPad Math Notes feature. Solve complex math problems with handwriting input, step-by-step solutions, and interactive graphs.