Most people don t think of having a postal code or a street address as a luxury, but for the nearly four billion people who live in an area with a poor or non-existent official location system, it really is.

You need an address to vote, have access to government services, and, perhaps most important, receive mail.

What 3 Words, a London-based company, has provided a way for all of these people to finally be on the map.

The firm has divided the earth into three-meter by three-meter squares, fifty-seven trillion squares in total.

And each square has been assigned a series of three random words as a moniker to give every location on earth a unique positioning code.

The app is available for free across all smartphone platforms.

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