A smartphone app known as "refer and earn" provides incentives for users to share it with their social network. These apps feature a referral system that pays users in difriday satta kingfferent ways for successfully bringing new users to the platform—for example, by offering points, cash, or discounts. For signing up using a referral link, the recently referred users are also rewarded. Through the use of word-of-mouth marketing, this marketing technique helps businesses increase user engagement and attract new customers.