I have downloaded three. The first one was the R Sounds this is the app that plays the sound of other car engines in sync with your car as you travel along, quite cool and would recommend if you like things like that. The second one was Euro News English, this is OK was it will read out news reports. The third was the calculator, purely because it was free.
I think as time goes by Renault will add more apps for you to select from. Glad I went for the R Link not only because of the apps but for the Tom Tom, speakers and email facility.
Have you downloaded any yet?