Why does it call Pretzel?

Because the only shortcut symbol I could ever remember is the command key, which is also called "Pretzel" key.

There are so many shortcut apps out there, why did you make another one?

I was frustrated by not being able to press a button and see all the shortcuts of my currently using app. The closest I found and loved was CheatSheet, but since I still have some minor complaints about it (such as not being able to see all the shortcuts of Adobe apps) so decided to make my own.

What is the next step for Pretzel?

One thing I have in mind is to be able to execute the command on click. Feel free to email/twitter DM me if you have any suggestion.