How much does it cost? Chloe Day Updated March 22, 2019 08:54 Follow Our core 3 word system will always be free for individuals to use, and there will always be ways to use our API for free. You can read more in our pricing policy. Related articles How does what3words create revenue? What is your API for? Can I download a database of the words? How does what3words handle buildings of more than one floor, such as apartment blocks? How do I partner with what3words? Comments 0 comments Article is closed for comments.