What Three Words (W3W) is a very handy tool that I use quite a bit when I am traveling Internationally, which I do frequently and to some very austere locations. Comes in very handy (has translation capabilities for both speech as well as from W3W to Lat/Lon (MGRS not yet available). Fairly easy to use and I carry/use it on Win/Apple/Android/iPhone comms devices. In fact some African Countries no longer use street address for shipping purposes, rather W3W. https://what3words.com/about