> I ask because I downloaded Maps.me the other day, after reading HN, and have found it to be missing most businesses that I've attempted to search for. In addition, there seems to be no obvious way to suggest missing destinations.

You might try looking at OsmAnd. It too uses OpenStreetMap data, but it does allow you to add some amount of missing data as well (see https://osmand.net/features?id=osm-editing-plugin).

This, of course, is part of the advantage of OpenStreetMap, you notice something missing, you add it, and now it is no longer missing.

And one can of course also add data to OpenStreetMaps via a browser. I've been trying to add any businesses I've found missing.

> In addition, there seems to be no obvious way to suggest missing destinations.

That's strange. I just checked Maps.me on Android, and if you open the hamburger menu there's an "add a place to the map" option.

Same on iOS.

>there seems to be no obvious way to suggest missing destinations. Unless Maps.Me use their own database for business listings, you just edit the map directly from openstreetmap.org or one of the many fat client map editors that are out there.

I don’t think that’s true. Items added on the OSM page appear on maps.me, and items added on maps.me appear on OSM.

You can add things to OSM using the Maps Android app; open the hamburger menu, choose "Add a place to the map".

Maps is based on Maps.me.