OsmAnd App
OsmAnd is an offline world map application based on OpenStreetMap (OSM), which allows you to navigate taking into account the preferred roads and vehicle dimensions. Plan routes based on inclines and record GPX tracks without an internet connection.
OsmAnd is an open source app. We do not collect user data and you decide what data the app will have access to.
OsmAnd currently supports map zoom and going back to the WunderLINQ app.
OsmAnd WunderLINQ Instruction - Android