A Complete Guide to Refer Earn Apps A Refer Earn App is a digital platform that encourages users to use referral marketing to promote goods or services. Usually, these apps let users send special reffenzy slotserral links to their loved ones, friends, or followers on social media. Referrers can receive rewards, such as cash bonuses, discounts, or freebies, when someone uses that link to sign up or make a purchase. In addition to the referrer, this model helps businesses grow their clientele through word-of-mouth advertising, which is frequently more successful than conventional forms of advertising.