Avoid this useless
Despite its lofty claims of accurately predicting roulette outcomes, the app does little more than perform basic calculations that any novice with a rudimentary understanding of probability could replicate. In essence, it's a glorified calculator masquerading as a sophisticated predictive tool.
Response from developer
Hi, I'm going to answer to all of your comments: - This app neither promises the moon nor claims any type of prediction. - It indeed performs basic calculations, and that's why, if you properly read the description, there's a free version of this app - Again, if you read the description, this app allows you to create and configure your systems, that's why you have to pay the price. - I completely respect that you don't want to pay the price it is, so you may want to consider getting your money back.