Keycard is undoubtedly the easiest way to keep your Mac secure when you’re not around.
Using Bluetooth®, Keycard locks your Mac using your iOS device when it detects you are leaving your computer. When you come back, it unlocks it for you. Leaving your desk for 10 minutes? Grabbing a coffee in the library? Take your iPhone or other iOS device with you and it can serve as your own personal “Keycard.”
If you’re somebody that leaves their Mac on but unattended for long periods of time, it can be tedious locking your computer just so that your colleagues or random people can’t prank you or interfere with the things that you are working on.
Wanting to make the process easier and more automatic, iOS and Mac app specialists Appuous created Keycard, a new Mac app that uses the Bluetooth connection on a smartphone or tablet to lock or unlock your computer the minute you step away or return to it.
When Keycard is installed and run, it will sit in your menu bar waiting for instruction. First, you’ll need to detect and pair it with your iPhone, iPad or any other Bluetooth-enabled device, assigning it a device capable of operating as your keycard.
Once you have paired the device and it is recognised, you can simply walk away from your Mac and it will lock itself automatically. You can also set a 4-digit PIN code to unlock your Mac in an emergency (or when you don’t have your device with you).
PS:Keycard poor support for the iPhone 5.
OS X 10.7 or later, 64-bit processor