A week later, when I needed to use a calculator, I swiped down to open the Control Center, and the calculator had disappeared! I panicked, “how could Apple remove the calculator?” 'Show me my calculator!' 'Where is my calculator?' After I emailed, Apple informed me that if I deleted the Calculator app, it would also disappear from my Control Center-thus causing me to look like a buffoon. In that process, I deleted my free Calculator app, not realizing it would also disappear from my Control Center. When the feature first became available, I started deleting every Apple stock app that I didn’t use.

While the iPhone does have one, beginning with iOS 10, Apple gave users the option to remove Apple stock apps from their Home screens. First of all, strange as it may sound, the iPad doesn't come with a built-in calculator app (but we'll show you a workaround!). If your iPhone or iPad Calculator app has disappeared from your Home screen or Control Center, don’t panic We'll show you how to get the Calculator app back.

How to open calculator plus app