The recent update dosnt require the app to be running in the background in order to work, thank you so very much.. It was getting a bit annoying when I go to close all my apps and I closed the app it wouldnt be able to unlock my Mac, now I can just hop on my imac and not worry about if the app is still running!! Thanks again and again!..
Macboy1015 about Knock – unlock your Mac without a password using your iPhone and Apple Watch, v1.0.3