Replying to @sortova@redwombat.social
@sortova Haven’t had a chance to play with it too much but @CoMaps seems to do what you want. I know I had an OSM-based app I used long ago on travel but I can’t recall the name.
“Accuracy” is going to depend a lot on what’s around you signal-wise and/or how good a view of satellites you’re giving your phone at the time.
There’s only so much particular apps can do to improve that.