The new Calculator app in iPadOS 18 is, at first glance, wildly unimpressive. When I installed the new operating system, which is now in public beta, I tapped the Calculator icon expecting something that felt uniquely tablet-focused and powerful. I got, well, the iPhone’s Calculator app — only slightly larger. It’s a nice addition to the iPad, sure, but there’s nothing here that took 14 years to make.
The Calculator app doesn’t really matter, though. I suspect you’ll hardly ever use it. What’s actually extremely cool and...