The app starts by showing the login and therefore requires to be registered first. However, on the official website I can listen without registering. An API req

The app starts by showing the login and therefore requires to be registered first. However, on the official website I can listen without registering. An API requirement I guess. A regular user will probably be registered anyway. But the login looks exactly like the official page. So is this just a wrapper for the website or do they actually add value ?