Street­Complete: An app for those who want to contribute to OpenStreetMap

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.