Great app with a big flaw – what3words: Navigation & Maps Review

I love the idea of this app and they have done well implementing it. HOWEVER, it is useless without cellular data (which I suspect is the case in many, if not most, areas that do not have street addresses). I tried using the app in several national parks ( which have spotty or no cell service) over the last couple of weeks. The app ‘works’, giving a 3 word address based on the GPS but there is no map. It sorely needs downloadable maps similar to the way the HERE WeGo app works.
Review by iowa_don on what3words: Navigation & Maps.