Great! Welcome to the #OpenStreetMap community 🙂
Please note that the #OrganicMaps developer community has forked it under the name @CoMaps due to governance and future takeover concerns. #CoMaps has replaced Organic Maps as my first recommendation for an OSM app.
#OsmAnd has been mentioned as a more powerful alternative to CoMaps/Organic Maps. However, if someone doesn’t need offline maps (maybe they’re low on storage), or maybe you need to share a place on OSM with someone who doesn’t have CoMaps/Organic Maps/OsmAnd installed - check out osmapp.org/ (@osmapp), which is a progressive web app with multilingual vector tiles, navigation, photos from Wikimedia Commons, 3D buildings, indoor maps, and more.
mapcomplete.org/ (@MapComplete) is another web app worth checking out. It works on all devices, the concept of themed maps helps you discover some of the possibilities of OSM, and it has a beginner-friendly quiz-like editor similar to StreetComplete.
Most notably, #MapComplete shows you photos of places (including photos of restaurant menus!) from #Panoramax (@panoramax) , and ratings and reviews from #MangroveReviews (@mangroveReviews) …and it allows you to easily add them yourself using only your OSM account. Panoramax and Mangrove Reviews are libre (“open”) data projects just like OSM, and can help all OSM apps.
I’ve heard that Magic Earth (proprietary) uses OSM data and has traffic information too. Worth a look?

MapComplete is a platform to visualize OpenStreetMap on a specific topic and to easily contribute data back to it.
mapcomplete.org