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
3.OneBusAway / onebusaway-androidThe official Android app for OneBusAwayandroidonebusawayjavapublic-transportationtransitopen-transit-software-foundationKotlinOther license580 total401 forks+19 starsfrom 561 · score 3.00
4.grote / TransportrFree Public Transport Assistant without Ads or Trackingpublic-transportationandroid-appmapKotlinGPL-3.01.2K total208 forks+11 starsfrom 1,159 · score 2.48