Knock and Apple Watch are a match made in heaven. Knock 2.0 takes full advantage of Apple Watch, making unlocking your Mac faster and more secure than ever before. When you put on your Apple Watch, Touch ID will ask for your fingerprint. After that, you can unlock your Mac from your wrist with just one tap – no Touch ID required! It’s all the security of two-factor authentication, but all the convenience of Knock.
You keep your iPhone with you all the time. Now you can use it as a password. You never have to open the app— just knock on your phone twice, even when it’s in your pocket, and you're in.
Using Knock won't drain your iPhone's battery, even if you use it all day every day. Knock securely communicates with your Mac using Bluetooth Low Energy, a new technology that draws very little power.
Knock works with all new Macs
and the iPhone 6, 6 Plus, 5S, 5C, 5 & 4S
