Calculator - Free Calculator is a free and easy-to-use calculator app for Android that lets you do basic arithmetic operations, such as addition, subtraction, multiplication, and division. It has a simple and clean user interface, so it's easy to use. It supports the most common unit conversions and currency exchange rates, so you can easily convert between different units.

To use this app, first tap the icon in the upper left corner to open the calculator.

Then, tap the icon in the upper right corner to get the current currency exchange rate.

To add a currency, tap the icon in the upper right corner and choose the currency you want to add.

You can add multiple currencies at the same time.

To clear the history, tap the circle in the upper right corner.