Most devices already have a calculator app built in, including your computer. That’s why most people have no use for a stand-alone calculator. But if you do want or need a number cruncher that’s free and untethered and all independent like, this is the one to get. The 10-key calculator. It’s what a calculator would have looked like if there had been one built into your keyboard number pad. Instead of soft squishy keys, you get the clickety clack of a keyboard, which I’m sure won’t help it fit in your pocket and it will only annoy fellow nerds. All of this backwards innovation will cost you $88. Oddly, it’s only available in red or white.