knockiphonemacWell, here’s a new way to unlock your Mac: Tap on your iPhone.

Yes, that’s right: There’s now a way to access your Apple laptop with two simple taps on your iPhone.

Knock is a new tool that says goodbye to entering passwords. It pairs a $3.99 iOS app with a free Mac app to allow users to unlock their Macs securely and wirelessly by “knocking” the back of their iPhones twice.

“Right now security is annoying, so people are walking around with their data totally unprotected,” Knock co-founder WIlliam Henderson said. “We want to change that.”

Built by Portland-based Henderson — who previously created Square Wallet — and Bay Area-based Jon Schlossberg, Knock only needs to be open in the multitasking tray for the app to function (your iPhone does not need to be unlocked). Knock also uses Bluetooth Low Energy to save battery.

Knock, bootstrapped by Henderson and Schlossberg, works with any Mac that supports Bluetooth 4.0, which includes most new Macs. Check out the $3.99 app here, and watch the video below to see how it works.

Hat tip to Silicon Florist

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