Radiogram is an app that lets you listen to any radio station from more than a dozen different countries without any advertisements. In all, there are more than a thousand different stations to explore from all kinds of genres: classical music, pop, news, sports, jazz, etc.
After choosing a country, you can see a list of its current most popular stations. If you don't find the station you're looking for, you can simply type it into the search box and it's sure to pop up. On top of that, you can tune in to various regional broadcasts of the same station.
One of the most interesting extras included in Radiogram is the ability to use it with Chromecast. The button to connect to it is right next to the play button.
Radiogram is an excellent radio app for Android that lets you tune in to thousands of different radio stations in various languages. All of this completely ad-free and with a simple and elegant interface. Without a doubt, it's one of the best radio apps currently available.