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Knock is an iPhone app that lets you unlock your Mac by knocking on your iPhone! Yes you read it correct by knocking on your iPhone. Knock securely talks to your Mac by using low power Bluetooth technology. The only catch is Knock does not work on all Mac it only supports the Newer Macs that support the Bluetooth 4.0. So please check in the screenshots to make sure your Mac is compatible.

Knock – unlock your Mac without a password using your iPhoneKnock Software, IncUtilities$ 0.99Download


Faster and safer than typing a password, for iOS and Mac.

PLEASE CHECK TO SEE IF YOUR MAC IS COMPATIBLE BEFORE PURCHASING. Compatible Macs are listed in the screenshot below.

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 any Mac that supports Bluetooth 4.0.