iPhone mobile news usability

App unlocks Mac with two thumps on your iPhone

A new iOS app, Knock, uses Bluetooth low energy technology to let you skip over the password process on a Mac and simply tap the back of your iPhone. The founders of ‘Knock’ want to make getting into your computer as easy as rapping your knuckles through the pocket of your jeans.

The iOS app is $3.99 and works in conjunction with a free Mac counterpart.For the app to work (which it does with moderate regularity in my limited experience), your iPhone must have the app running in the background at all times. However, the phone does not need to be unlocked to register the knocking.

Here is a promotional video for further explanation.

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