Read how to understand single and double-opt-in.
Prizes are usually assigned at the end of the game. However, if you prefer to have players confirm their prize claim, consider choosing the double-opt-in option.
When to choose Single Opt-in?
Choose this if you want the players to be assigned a prize as soon as the game ends.
Pros: Players instantly win the prize they see, reducing confusion
Cons: When doing follow-ups with winners there may be a lot of players who didn't really want the prize and conversion rate is lower
When to choose Double opt-in?
Choose this if you want the players to confirm that they wish to claim the prize after they are shown it.
Pros: Higher conversion rate as people have to accept the prize knowingly
Cons: May result in confusion why some players did not receive the prize