Two numbers often confused in beginner slot discussions: hit frequency and bonus frequency. They measure different things. Both matter. Here is the difference in plain terms.
Hit frequency — "how often something wins"
Hit frequency is the percentage of spins that return any win at all, including sub-stake "wins" (where the win is less than the bet, e.g. a ₱2 spin returning ₱0.50). Fortune Gems hit frequency: 32.7% — roughly one in three spins returns something. Super Ace: 27.4%. Mahjong Ways 2: 22.6%. Crazy Time (rounds): 12.8%. Fishing War (shots catching something): 39.2% — the highest on SPNT because the game is designed for continuous small catches.
Bonus frequency — "how often the free-spin round triggers"
Bonus frequency is the rate at which the special bonus round (free spins, multiplier round, game-show segment) activates. This is a much rarer event than a basic hit. Fortune Gems bonus trigger: once per 120 base spins on average. Fortune Tiger: once per 140. Mahjong Ways 2: once per 200. Sweet Bonanza: once per 180. The bonus round is where most of the RTP contribution comes from on high-variance slots, so it matters even though it is rare.
Why the distinction matters
Hit frequency shapes the emotional texture of your session — it is what makes the session "feel active" or "feel flat". High hit frequency (Fortune Gems) feels engaging because something happens often. Low hit frequency (Mahjong Ways 2) feels streaky because most spins return nothing. Bonus frequency, by contrast, shapes your session budgeting — you need to stay in the game long enough for a bonus round to occur. If your session budget is under 1× bonus frequency (e.g. 80 spins on a 140-spin-bonus-frequency slot), you will often leave without seeing the main RTP contributor.
Practical beginner rule
For a first session, pick a slot where your budget covers at least 1.5× bonus frequency. On Fortune Gems (120-spin bonus) at ₱2 stake, that is 180 spins = ₱360 budget. On Fortune Tiger (140-spin bonus) at ₱3 stake, that is 210 spins = ₱630 budget. If your actual budget is ₱100, pick Fortune Gems (lowest spin stake on the registry) to stretch the spin count as far as possible.
Ignoring bonus frequency is why many beginners end a ₱100 session on a high-variance slot feeling "nothing happened". Something did happen — you just left before the main-event spin arrived.