"Evernote Premium" text is hovering on my screen, despite Evernote app being closed

I have some text hovering over my screen, in all my spaces, for at least the past 2 weeks. I cannot recall when this started. And, unfortunately, I do not know how to replicate it.

Several attempts to contact Evernote for support have been fruitless.

This is what the text looks like :

This text is there whether I'm in a terminal window, running a VM through VMWare, or watching a movie!

I have uninstalled and quit Evernote, but I'm beginning to think this is not a problem of Evernote.

This is a 13" Macbook Air from mid-2013 running OSX Yosemite 10.10.1