KeyTouch for Apple Watch
Unlock, lock & enter your password on your Mac with Watch
Make your macOS Dock faster
Dockey makes changing some of the more advanced Dock preferences as easy as clicking a button. With integrated preview, you can see how it would look and feel like and save changes you're happy with the result.
Unlock your Mac using your Android's fingerprint sensor
DroidID is an app for Android that lets you unlock your Mac with a fingerprint sensor.