To be honest with you, I don't think gambling with fake money through fake money gambling app will help an addicted gambler stop gambling, rather, it will only increase or intensify the urge to keep gambling with real money.
I will tell you how, imagine a scenario where you are gambling with fake money and along the line, you won let's say $50,000 in fake money, how would you react to that?
An addicted gambler will say to him or her self, "had this been real money, this $50,000 would have been a lot of money for me to spend".
That thought alone can drive that gambler into continuing to gamble with real money.
At the end of it all, you discover that the fake money gambling app only helped the addicted gambler to Stay away from gambling with real money for just a short period of time.
This is true but for those who got a little wiser, they will know that the situation can changed the moment they step in the real casino. The reason why they can won big in a fake game is that they are not afraid to bet big because they know that once they lose their play money, it will be refilled again after some time.
In other words, it is unlimited. Not unlike if you are betting in real life where you mostly came to the casino with a limited amount of money and you carefully budget it. It's fine if these fake gambling app/site can help us even in a short period of time but at least they can be used by the time, we don't have a money and we are itching to play gambling.