In order to predict next roll you need to know private server seed(which never got revealed till you are using it) and client seed. I know only one guy in gambling history who knew what's next roll gonna come and he made a profit of 2k+ btc and left the casino till anybody get to know about it.
So I have only one question in my mind.
Why in the world anyone will sell a software for a couple of $$s when he can 1000x of that in just a few clicks and that too instantly without waiting for customers to buy it and explaining them how to use it.
Clearly seems a scammer to me. Don't buy such things from anywhere.
That is a common sense we need to use before buying something.
No one will sell if that method really works because they will keep in private and make money from the site until bitsler find out this bug. But if a person is trying to sell it for few bucks mean there is something hidden and we don't know that so don't risk your money to buy such things.