Love the site and design.

BUT something already does this, for free, it's called keycard.

As someone else pointed out, very hard to find on app store, then also, it suddenly costs $3.99 in app store. YOU HID THAT PART NICELY.

One other thing, why name your zip file "latest.zip" - took me a good minute to find it in download folder.

Apple should already have this crap built in with new ios/mavericks though :( Also, does it work on my mac 2010? Doesn't look like it. >.<

Since iOS 7 - nothing works for this type of setup, Knock, or Keycard.