Addition is a free calculator application for Android developed by ProAppDesigns. This simple and easy-to-use app is designed to perform basic arithmetic calculations like addition, subtraction, multiplication, and division.

The app has a clean and user-friendly interface that allows users to enter numbers and perform calculations with ease. The calculator also supports decimal points and negative numbers. The app also has a history feature that displays the previous calculations performed by the user.

In conclusion, Addition is a great choice for anyone looking for a simple and reliable calculator app for their Android device. It is perfect for basic calculations and is a must-have for anyone who needs to perform quick math operations on the go.