I'm also interested in the answer to this.<p>OSMand does an OK job of editing things on OSM, but whenever I use it I wind up hitting brick walls of things that aren't supported (like editing ways/roads).<p>Streetcomplete is good for updating data while out-and-about.<p><a href="https://osmand.net/docs/user/plugins/osm-editing/" rel="nofollow">https://osmand.net/docs/user/plugins/osm-editing/</a><p><a href="https://streetcomplete.app/?lang=en" rel="nofollow">https://streetcomplete.app/?lang=en</a>
You just make an account there and add it yourself.<p>Their editor isn't very easy to use though. I tried a few times but always went back to Google Maps because the UX is so difficult.