I haven't seen much mention of Maps.Me, but it's another OSM-based android app I've heard good things about from Europeans and enjoyed while traveling in South America.
I haven't tried it much in the US.
I haven't tried it much in the US.
The US should be pretty good for trails, reasonable for streets and highly variable for addresses and POIs.
One advantage of Organic Maps is that it integrates well with OpenStreetMap. As I live in a place where OSM coverage is pretty average, I have fun adding places I know through this application and make small contributions in my own way. It also does not collect any user data. Give it a try.