Haptic Touch Bar uses the built-in haptic engine of your Macbook Pro to provide haptic (force) feedback whenever you press a keyboard key on the Touch Bar.
Haptic Touch Bar provides haptic (force) and sound feedback whenever you press a Touch Bar button on MacBook Pro - including keyboard keys (Esc, F1-F12), Control Strip buttons (volume, brightness, etc.), and contextual app controls.
Function Key Pro is a macOS utility that helps you distinguish special function keys (e.g. volume up) and standard ones (F1, F2, etc.) WITHOUT Fn, and LAUNCH apps or complex multi-key hotkeys with a single press.