christopherius, 9 months ago StreetComplete. It's an easy way to improve openstreetmap wherever you are. https://f-droid.org/en/packages/de.westnordost.streetcomplete/
StreetComplete. It's an easy way to improve openstreetmap wherever you are. https://f-droid.org/en/packages/de.westnordost.streetcomplete/