As the title says.
I have been looking at the paid apps from Openrunner and they both talk about about using OCM. So what is it and where does it differ from OSM?
i had an app on my first "smartphone" a while ago (late adopter so years rather than decades) that used OSM and talked about OCM but I could never get my head round the app so it got junked and I stayed no wiser.
Mods I don't know where to put this, not GPS and not cycling specific. Feel free to move to a more appropriate location, if necessary.
