"been" is an Android app developed by REBR AS that allows users to keep track of the countries they have visited and visualize them on a world map. The app is free to use and easy to navigate, making it a great tool for travel enthusiasts.

After downloading the app, users can select the countries they have visited from a list or by tapping on the country directly on the map. The app then updates the world map to display the selected countries in a different color. Users can also sign in to their accounts and access their maps on multiple devices.

While "been" currently only displays the countries visited on the world map, the developer has promised future updates that will include additional features, such as the ability to zoom in on the map and visualize specific regions within a country. Overall, "been" is a simple and effective travel app that allows users to track and visualize their travels in a fun and interactive way.