- Organic Maps is minimalistic, easy, great for what it does.
- OsmAnd does everything. Whenever I want to do something more advanced that is not in Organic Maps (typically I like the GPX stuff for hiking, or the ski maps, etc), I turn to OsmAnd.
I just need both.
But bus routes are a harder problem to integrate, especially in larger cities. In Paris, there are more than 200 bus routes (more than 1000 including the greater suburbs), map readability would take a probably big hit if they were displayed on the map, or at least it would require a lot of care to do it right. A some larger cities also have a night service for busses, with routes differing from the day busses, handling those properly is also an issue.
Here is the entry point to the current subways validator with wiki links at the bottom: https://cdn.organicmaps.app/subway/
Unfortunately that minimalism comes with some downsides. While OM has a great metro map, it doesn't show bus lines (which would probably blot the map size quite a bit), making it unfortunately unusable for my use case.