Every Jili, PG Soft, Pragmatic Play, Evolution and Microgaming slot runs on a certified random number generator. Here is what that means for your session.
RTP is the most misunderstood number in slots. Here is what it actually predicts, how variance makes single sessions look nothing like the RTP, and which titles have the highest PH observed RTP.
Low variance vs high variance slots behave completely differently. Here is how to match your bankroll to the variance class of the slot you open.
Hit frequency is how often any spin returns some win. Bonus frequency is how often the bonus round triggers. They are different numbers, measured differently, and matter for different things.
The bonus-buy button looks like a shortcut to the good part. For beginners it usually becomes the fastest way to end a session. Here is the math.