Every 3m square in the world has a unique #address. 
Get exactly to the right place with what3words 
pic.twitter.com/4dEUlb4F4V
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I love your what3words App. Are you going to develop this technology further to support vertical as well such as being able to pin pointing a location on a high floor in a block of flats?
Hi John, the supporting technology (indoor positioning/mapping/navigation) is not yet widespread enough for there to be a great benefit of specifying a point with height included. However, if and when it becomes helpful, we have options for including this with the 3 word address.
