These things will earn you a pittance, far, far below minimum wage. It's not worth it if you want to make money. If you have time to play games for many hours in the hope of getting money from it, you'd be much better served with a part-time job.
Literally anything (dog walking, car washing, gardening, cleaning) will earn you 50 fold what you'd get from these scam apps.
They tend to lead you along with winnings and then stagnate when you're close to the minimum payout. You won't actually play that many games; the majority of the time you'll be watching ads.
Avoid like the plague.