How do I unhide an app that I have no idea what it is named?

I just hid an app 5 minutes ago and immediately regretted it. That's how I ended up here right this moment. I figured out how to unhide the hidden app. On your page where all your apps are listed, next to the search bar click 'Advance Search' > search by apps I manage > find it in the list and click (add) next to the app name. It is now unhidden.