Excellent for communication when out of cell phone range

I use the DeLorme InReach 2-way communicator paired with this app, and it works very well. I believe InReach coupled with the iridium satellite system offers better and more reliable connectivity that found with other systems (SPOT for instance). My family/friends can follow my travels via the web site as I drop crumbs, and I am confident that I can reach out for help if ever needed. Great device for “off the beaten track” hiking. but want the option of communication with the outside.
I also use another app for navigation (ViewRanger), and these two apps coupled together provide all I need to go wherever I like with confidence (I do also carry a compass and map as backup, but have never needed use them). The InReach with this app and the ViewRanger app have never failed.

JRS43 about Earthmate