OpenStreetMap is a free and open-source mapping service that relies on the contributions of thousands of volunteers to create accurate and detailed maps. Often called the "Wikipedia of cartography," it provides map data used by various services, including government websites, Apple Maps, ChatGPT, and even Flight Simulator. While OpenStreetMap is comprehensive, it sometimes lacks specific details, such as the opening hours of local businesses or the characteristics of certain infrastructure. To help improve the service, a simple app called StreetComplete has been developed. StreetComplete, which has been available on Android for several years, recently launched a beta version for iOS. The app works by showing users small bubbles on the map that prompt them to provide information about their surroundings. For example, users can input the opening hours of a nearby restaurant, note the height of sidewalks, or add details about cycling infrastructure. This interactive approach makes the mapping process more engaging and fun. What sets StreetComplete apart is its use of gamification to encourage contributions. Users are motivated to create an account on OpenStreetMap through the app, ensuring that their data is properly uploaded and allowing them to earn rewards. The app sometimes requests detailed information, such as the identification numbers of fire hydrants, the surface type of roads, or the width of bike lanes. This is because OpenStreetMap is used by specialized mapping applications, including those designed for planning bike routes, locating public restrooms, or assisting people who use wheelchairs. While StreetComplete is not a direct competitor to Google Maps, it offers a comprehensive toolset for building a viable alternative to Google's mapping services. Other apps that use OpenStreetMap data and provide features similar to Google Maps include CoMaps, available on both iOS and Android, and Cartes.app, a French web-based solution that works across all devices.