Yes, there are many apps that pay you real money to play games, including apps that use the Skillz competitive gaming platform. If you're wondering how to make money on the side, games that use the Skillz platform could be a good place to get started.

The RNG works by using a complex mathematical formula to generate a series of random numbers. These numbers are then mapped onto specific symbols on the slot machine's reels. When the player spins the reels, the machine uses the RNG to determine which symbols will appear, and in what order.

The short answer is that slots are programmed for a target percentage in the same way table games are: Odds of the game are set so they will naturally lead to an expected payback percentage.