OsmAnd - Global mobile map viewing and navigation for online and offline OSM maps
Geosetter - GeoSetter is a freeware tool for Windows (requires Internet Explorer 10 or higher) for showing and changing geo data and
MAPS.ME - Fast, detailed and completely offline maps for mobile devices
Geotag - GeoTag is a freeware tool for Mac for showing and changing geo data of image files (e.g.
HERE WeGo - HERE WeGo - Maps - Routes - Directions - All ways from A to B in one
RoboGEO - Geocode digital photos (including RAW) and tag images with latitude and longitude coordinates.