Believe it or not, Apple still does not support the iPad with its basic Calculator app. And as much as nerds love their calculator watches, there’s no support for Apple Watch, either. If you want advanced features like graphing or unit conversion, you’re going to need to look elsewhere, too.
There are certainly plenty of good reasons to grab a third-party calculator app that supports your iPhone, iPad, and maybe even Apple Watch. Fortunately, there are dozens of calculator apps in the App Store. Unfortunately, there are dozens of calculator apps to consider.