This is a little overview of TuneIn Radio, the free version that lacks a few items, comparing it to the paid version, besides the fact that you would be presented with ads at the bottom of the app.

The free version, however, just like the paid version, will give you access to all the available stations found in the app.

The free version is located at the following URL:
https://play.google.com/store/apps/details?id=tunein.player
and the paid version is located at:
https://play.google.com/store/apps/details?id=radiotime.player