Help to improve the OpenStreetMap with StreetComplete!
This app finds incomplete and extendable data in your vicinity and displays it on a map as markers. Each of those is solvable by answering a simple question to complete the info on site.
The info you enter is then directly added to the OpenStreetMap in your name, without the need to use another editor.
Yeah, it's made more for refining and confirming details than for adding entirely new objects.
When I want to add something that's not on the map yet, I either add a note in StreetComplete and come back to it later on my computer, or I add it using Vespucci. (I've been known to add items using Vespucci, then reload the data on StreetComplete so I can fill in details that aren't in the presets and that I can't remember how to tag manually!)