1.streetcomplete / StreetCompleteEasy to use OpenStreetMap editor for Android and iOSopenstreetmapsurveymappingeditorosmandroid-app+2 moreKotlinGPL-3.05.1K total479 forks+405 starsfrom 4,728 · score 6.01
2.Helium314 / SCEEOpenStreetMap surveyor app for experienced OSM contributorsKotlinGPL-3.0259 total28 forks+21 starsfrom 238 · score 3.09