Google Maps - Find local businesses, view maps and get driving directions in Google Maps.
2GIS - 2GIS provides 3D-maps of 180+ cities, contacts of 1.
OsmAnd - Global mobile map viewing and navigation for online and offline OSM maps
Komoot - Plan Your Perfect Hiking, Mountain Biking or Road Biking Adventure
RMaps - RMaps is the navigation tool. You can use RMaps like online map viewer for some popular maps.
Outdooractive - The digital home for experiencing the great outdoors