The mechanics of a demo game and a paid slot are identical. You launch the same entertainment, but use casino coins instead of making a real money bet.
The only difference between free games is the limited access to paid options. For example, you will not be able to take part in the drawing of the cumulative jackpots. This option is available only after placing a real bet.
The difference when switching from the demo mode to a paid game appears due to the change in user behaviour. Very often, players change their strategy of action. This leads to a change in the frequency of wins.
If speak about the technical parameters and mathematics of demo slots, they do not differ from the session in the paid mode. The volatility, return percentage, and bonuses are identical for both versions of a slot.