No nothing at all. They do charge 2 or 3% of the value of the card you’re creating irc. So if you want to buy a game that costs 200 you have to compensate for that when doing a top up.
Back on topic: I can foresee this getting banned (if they can figure out how) since the emulator players on PC will have a distinct advantage using mouse and keyboard
Something I should have mentioned, and it also stipulates this in the emulator itself.
You will only be paired with players also using the app. Can’t imagine they’ll integrate a cross platform, at least not one that one that won’t allow for the same advantage as a controller or mouse and keyboard.