It'll allow you to hit some of the minor jackpots but when it was going to hit a grand prize, a wheel or a 'random' jackpot is selected- a wheel will stop and bump to the next lesser winning amount. I spent the last two days testing my theory in it happened over and over and over again. Once I've noticed this I've paid closer and closer attention and this is pretty much 100% of the time when you were going to hit a major prize. I've noticed over and over when you want the wheel on any of the games to stop it deliberately won't.
If you like casino games and playing for an otherwise 'free' app it's cool, but if you're like me and like to manually choose spin and stop as you like to play- there's a problem. Fun free casino game but has a major flawīeen playing this app for a few days now, and I've noticed something with the algorithm whether it's intentional or not is quit noticeably annoying.