Do not buy if you use 2+ monitors
I love this app, but it has too much glitch still. Key toggles are very inconsistent, and the app is only accessible from desktops space 1. If you use more than two monitors like me, you will not like this app.
Developer seems very active, hope this app gets better.
ssssancho about
Simplify: control your favourite music players, v3.3.0