Also, users of the refer and earn app can benefit from exclusive promotions & events that are offered, like double rewards for a brief period of time or extra incentivessilver slots for referring multiple friends within a set amount of time. Refer and earn applications usually provide users with a range of incentives and rewards for referring new users. These incentives can take the form of gift cards, cash bonuses, cash back on future purchases, free goods or services, or even freebies like sweepstakes entries.