Incredible idea!

I liked the app so much. The setup was 2-3 seconds and i was good to go! I am using it all day and saw no serious battery drain issues. Definetly worth the penny.

Altough, I am sure the sync would be faster in the upcoming updates. Also it would be better if we do not have to press a key or click on the mouse to reveal the lock screen on Mac side.

TL;DR, buy it.

Edit: the app lost responsiveness after the latest update.

cihanavci about Knock – unlock your Mac without a password using your iPhone and Apple Watch, v1.0.2