what3words addresses are accurate to 3m x 3m, enabling them to specify a precise entrance, unlike a street address which identifies an entire building.
They are all unique, unlike street addresses which are often duplicated – there are 14 Church Roads in London alone.
They cover everywhere, enabling people to easily communicate locations with no street address – parks and beaches, for example.
They can be used in over 40 languages, while street addresses only exist in the local language.
They already exist for the entire world and are fixed so they never need updating. Street addresses have to be allocated, and the databases require constant updates as cities develop.