No specific info about version 2.1. Please visit the main page of Padlock on Mac Informer.
Lock your Mac and prevent unauthorized users from accessing your data.
This program helps you lock your Mac by using your iPhone.
Simple status bar application that allows you to lock your screen.
Padlock is an extremely robust 'application security' solution for your mac osx
Swipe Lock brings the mobile experience to desktops and laptops.