Bonus Timing and Single Session Outcome
Every spin starts on the fixed 7x7 grid, and Free Spins trigger when enough Scatter symbols land anywhere on it. How often that happens is not known in advance. The result of one session is random, whatever the RTP version in play, so a long run without Free Spins tells you nothing about the next spin.
Nothing on the reels names the RTP version running, so a spin does not reveal it. Which RTP version Spinup Casino runs is shown only in the game rules. Read those rules before you compare this title with the other versions of the series.
On the reels, the maximum win is a ceiling that a round reaches very rarely. No one can tell in advance which round will come close. Multiplier spots can keep growing through a whole Free Spins round, which makes a large win possible, but no spin promises one.