Refer and earn apps have become more and more popular in recent years as a way for people to make extra money & as a marketing tactic for businesses looking to expand their clientele. These apps make use of referral madamangamerketing strategies, offering rewards or other advantages to current users who refer new users to the app. With this strategy, the business grows its customer base and users get paid for successful referrals, creating a win-win situation for both parties. Refer and earn apps work with an easy-to-understand yet powerful mechanism. Users receive a special code or link to share with their friends, family, and followers on social media.