I would like to know if any license is required to use Fifa registered team names and player names in paid or free games (e.g. Spanish League teams, Messi, Cristiano Ronaldo names etc).
I'm currently developing an interactive soccer game for mobile platforms (iOs and Android specifically) and I was wondering if it there is any legal issue on using this information. I suppose that if I publish it as a paid-app, it is maybe ilegal without a Fifpro License or something like that. But would it be ilegal if I publish the game for free, and charge for special items in the game?