Phone slots are mobile-friendly slot games that use a random number generator...

https://record-wiki.win/index.php/What_Are_Paylines_in_Slots_on_a_Phone%3F

Phone slots are mobile-friendly slot games that use a random number generator (RNG) to ensure fair results. Before playing, check the return-to-player (RTP) percentage and game volatility to understand your chances and risk level