Don't know how many here have read about the new Mac app but from my initial testing, it can do what the developer claims and does it very well. Here is the iTunes link and developer website. The iOS app is $3.99 and the Mac app is free. Obviously, you can't use the app at initial boot login screen, as it isn't able to pair with your IOS at that point. However, once the boot process has finished and you are logged in, you can log out of your Mac (via hot corner or manually) if you need to step away from your computer, and instead of having to type in your long password every time, you can use your iPhone and Touch ID to unlock your Mac. It will also enter your password for you every time you are making admin changes. I tested the pattern tap to trackpad feature. It works albeit it isn't for me, so I turned that particular feature off. Granted, this may not be for everyone but, it may work well for your environment or geek desires.