I’ve grown very fond of the map & navigation app “organic maps” (https://organicmaps.app). I haven’t used it for navigation much yet, but contrary to magic earth it
is open source
actually contains many POIs so it’s much easier to find a store, a hotel, a restaurant etc. And it’s very easy to support the underlying open street map project by adding missing POIs yourself.
I’m finding it fairly easy to use, it also supports offline maps (like magic earth). I think murena should consider replacing magic earth (if car-navigation is on par) and maybe try supporting the project (I will by placing a donation).