KeyCue lets you perform the action by interacting with the semi-transparent HUD and has themes to make adjustments. 20 € is crazy high for modern app pricing, definitely not at an optimal supply-demand point.
Here's the zillions of options, which vary widely in usefulness:
Plus, you're buying support and sustainability (unless someone were to torrent it, which risks malware and reduces support & sustainability).
Cheat is very limited. It won't show modifier-only keys as KeyCue does, and it won't even let me take a screenshot of it (because that involves Shift).
Minimal and free, or expensive, pretty with features: pick one. ;)
