The extra macOS modifier key

Free for 7 days, purchase for ...

Put an unused key to work

Convert your caps lock key or any of your modifier keys to the hyper key, all four modifiers combined: ⌃⌥⌘⇧

The hyper key acts as an additional modifier key that you can use in all of your other apps that have keyboard shortcuts

Or just remap caps lock to a more useful key

Don't want to sacrifice a key?

Use a simple one touch gesture built just for activating the hyper key

Slide one touch down from a corner or the top edge of the trackpad to activate and remove the touch to release

Designed to enable one touch control of your windows with Rectangle Pro or app switching with Charmstone