Rising Calculator is a quick and easy to use app for iPhone, iPad, and Apple Watch, the iOS app gives you a calculator to deal with different numbers and calculations based on what you need, and the Apple Watch App gives you two different ways to interact with the app, one is easy to use by using the digital crown to select the desired number or operation, and the other is quick by using buttons on screen and gives you feedback on the buttons themselves, together Rising Calculator let you calculate on the fly from your hand.