Reward multupliers increase your rewards in the game.
There are two types of multupliers: Level Multupliers and Prize Multipliers.
Level Multupliers increase rewards for clearning levels, depending on their difficulty: Hard levels, Super hard levels, or Challenge levels. These multipliers affect coins and event currecy earned for clearing levels. It doesn't affect stars.
Prize Multiplier is a temporary booster that you can get as a reward in certain events. It multipliers level rewards, except for stars, but only works for a limited amount of time.
❗Please note:
⚡ The Reward multuplier only works if the level is passed, since you can only earn rewards by beating the level.
⚡ You can use several Reward multupliers at once: for example, if you play a Super Hard level that comes with its Multiplier but you've earned a Prize Multiplier in an event, the two multupliers will work together.