Interesting question- slot machines are actually based on a degree of randomness in each individual play, but the payouts when those random events produce a winning combination are controlled to ensure that only a certain percentage of money played is paid back. Typically in the high 90% range.
The truth is that there is no trick to slot machines. They provide random results based on set mechanics and it all comes down to luck. With that being said, not all games are the same, so picking the right options is key, and you can still change the size of the bet throughout the session for better results.
Does it Pay? No, it doesn't. Cash Slots is not giving away real prizes, so you won't get paid even if you meet the conditions. It's important to mention the developer's goal is to hook the player on the game for as long as possible.
If you are here for the game, Cash Slots may not satisfy you. It's better that you choose other similar slot-themed games on Google Play. If you are here for potential earning, you can forget about it completely. It's not going to materialize.
The jackpot is triggered by a specific combination of symbols on the reels. When you pull the lever or push the button, the random number generator generates a mixture of symbols. If the given combination matches the jackpot combination, you win big time.