Magic Earth offers a more polished user experience for driving. Compared to OsmAnd, you gain address geolocation from a third-party source (not sure which), traffic alerts, and a dashcam feature, but you lose map editing functionality and many of the non-driving features in OsmAnd. Magic Earth is closed source, although it is free of charge and has no ads. It doesn't hurt to have both Magic Earth and OsmAnd installed.
https://www.magicearth.com