StreetComplete is an easy to use editor of OpenStreetMap data available for Android. It can be used without any OpenStreetMap-specific knowledge. It asks simple questions, with answers directly used to edit and improve OpenStreetMap data. The app is aimed at users who do not know anything about OSM tagging schemes but still want to contribute to OpenStreetMap.
StreetComplete automatically looks for nearby places where a survey is needed and shows them as quest markers on its map. Each of these quests can then be solved on site by answering a simple question. For example, tapping on a marker may show the question "What is the name of this road?", with a text field to answer it. More examples are shown in the screenshots below.
The user's answer is automatically processed and uploaded directly into the OSM database. Edits are done in meaningful changesets using the user's OSM account. Since the app is meant to be used on a survey, it can be used offline and is economic with data usage.
To make the app easy to use, quests are limited to those answerable by asking simple questions.
See the latest release notes.
Many users are currently supporting this app through GitHub sponsors, Liberapay and Patreon. If you like the app, you can join them
Within the frame of Prototype Fund round 15 (March 2024 to August 2024), the German Federal Ministry of Education and Research sponsored Tobias Zwick to work on StreetComplete for iOS (see progress report)
Development on this app was also sponsored in round 8 (September 2020 to February 2021) of the Prototype fund, with focus on collecting more data points and on general improvements of this app.
The NLnet foundation sponsored development on this app in three individual grants with funds from the European Commission:
Two grants given to Mateusz Konieczny in 2019 and 2021 enabled him to work on StreetComplete for about one year in total, with a focus on clearer UI and improvements on data collection.
Furthermore, yet another grant enabled Tobias Zwick to work about five months in 2021/2022 on - most notably - the overlays functionality and measuring with AR.
In August 2020, the OpenStreetMap foundation funded the development of Map Maintenance with StreetComplete within the frame of the microgrants program.
