The iPhone's calculator app might seem quite basic, but there's a lot more to it than meets the eye. For example, it has a built-in scientific calculator. All you need to do is rotate your iPhone ...

Ever punched in the wrong number and thought you had to start all over again? Here's a game changer: simply swipe right or left on the calculator display to erase the last digit you entered. This ...

A calculator app is a handy tool that reduces the stress of various calculations in your daily life. Whether you’re dealing with academic percentages or need to add up multiple numbers, a calculator ...

Back in my previous life, I was a finance guy—that’s what my undergraduate degree is in, and that’s how I made my living for many years. Through it all, one particular piece of gear was always at my ...