Providing you've already downloaded the app, you won't need internet access to use it. This is because the app uses GPS.

Yes, what3words is free to download and use.

No, if you use what3words it won't be able to track you or hold any data on you within the app.

what3words isn’t a navigation app like Google Maps. It’s a global addressing system that makes it really simple to communicate exact locations. You can use what3words alongside Google Maps to find precise destinations, and to save and share exact locations faster and more easily than ever before.

Google Maps doesn’t make it easy to share a location of, say, your exact location on the M25 or a wrong turn down a country lane. This is because when entering a street address into Google Maps, a pin typically drops in the centre of a building or postcode, rather than an exact entrance. That's where what3words comes in.

In addition, dropping a pin on to Google Maps isn’t useful if you need to share that location with someone over a phone call, or enter it into an address field.