If you're not using Google Maps as your navigation assistant, your choices of accurate and updated mapping solutions are varied, but OpenStreetMaps (OSM) remains one of the top contenders thanks to an open-source user-generated approach. There are many OSM apps on Android, but the choice is much more limited for apps that also allow users to edit and contribute data right from their phones. There's the simple OSM Contributor which is just an editor, Bertel's favorite OsmAnd which is a full-fledged navigator and editor, and now MAPS.ME is getting updated to allow for OSM editing.
