Hi!
The latest update on my phone mentions in the version history that the upcoming version will support MGRS and UTM coordinates. Excellent new features!
Whenever I use google maps, it is easy to get a "plus.code" from there. As an example, Zurich airport is FH63+F9 Kloten, Eiffel Tower V75V+5W Paris, France. I think it would be really convenient if we could copy/paste those into SD as well.
The
http://plus.codes/ are free to use, usable offline, there's an opensource library to do the conversions. I have no idea how much it would change the binary size though.