Does XE Currency have a calculator?
XE Currency has basic calculator functionality built-in. To use it, perform a long click on the currency you want to modify by touching and holding on the desired currency. This will bring up the calculator interface, where you can insert addition, subtraction, multiplication and division symbols as well as bracket. When you are done, press the enter button on the lower right hand side of the screen. To close the calculator dialog without changing the value on the main screen, click the red arrow on the bottom left side of the screen.