I believe it would be nice if osmAPP can give users an option to directly open a point or location with their favorite mapping or navigation app. My typical use case for osmAPP is to visualize a location or POI on the map to share with somebody else, but not everyone uses OSM, so they're likely to want to use their own app.

In some apps, this geoURL link is sometimes described as "Open in App". Below are some screenshots from other apps that use it:

OpenStreetMap website

The OSM website's share panel includes a geo URI link:

OsmAnd

In OsmAnd, when a location or POI is selected, a user can share it as geo link

Organic Maps

In Organic Maps, when a POI is selected, the context menu includes the "Open in Another App" option

In Android, when a geo link is opened, it gives the user the option to select any installed app they prefer to use: