Topp40 is an Android app developed by Bauer Media AS that offers a convenient way to listen to the 40 most popular songs in Norway. It is an excellent alternative to DAB+ radio when you're on the go. With Topp40, you can enjoy the latest hits anytime, anywhere.

The app offers some exclusive features to users who create a profile and log in. You can access ad-free radio during the evening and weekends. Topp40 also provides a login function, Android Auto and car mode, listen later function, and Chromecast support.

Overall, Topp40 is a fantastic app for music enthusiasts who want to keep up with the latest trends in Norway's music scene. Its user-friendly interface and exclusive features make it a must-have for those who love music on the go.