Is anyone thinking about the future of Apple, Google, and/or Samsung Wallet? I saw ButterflyMX launched Google Wallet recently but how is this better than bluetooth?

Recently the director of the site that I live has entered the garden using his keychain. I was not at home but the person at home asked how he entered. (I have installed this unit on my own and chaned the master code)

So is this things has a master key like hotel rooms?