I don’t use all the apps on my Mac, iPhone, or iPad, either, but I was surprised about Tera’s pick as an app nobody uses. I don’t use Launchpad, either.
It’s the iPhone and iPad app launcher for the Mac. Seriously. That’s what it is. A launcher that looks and works much like the Launchpad on iOS devices. What you get is a Mac screen full of applications from the Applications and Utilities folders. They look just like a screen full of apps on iPhone or iPad.
I tried a little customization on Launchpad and it’s an elegant way to get to apps you need to open. Free. Already on your Mac.