Mac: It's sometimes easy to forget to remember to lock your Mac's screen when you walk away. If you're looking for a simple automatic solution, Bluetooth Screen Lock is a utility that automatically locks your screen when you walk away with a paired Bluetooth device.
Bluetooth Lock Screen is a simple utility, but it comes in handy if you always forget to lock your screen. With a Bluetooth device like a smartphone or tablet paired with your Mac, you can set Bluetooth Screen Lock to kick on the screensaver and require a password login when you walk out of range. It's an effective way to trigger a screen lock when you forget. Bluetooth Screen Lock is a 99¢ download in the Mac App Store.