The popularity of these apps has increased as a result of social media platforms like Facebook, Instagram, and WhatsApp, which allow users to easily promote their apps to a wide audience. Companies can increase tpay by phone slotsheir user base & reward current users for their promotional efforts by implementing this referral model. It has shown to be a successful strategy. Therefore, in the mobile app ecosystem, Refer Earn Apps have gained widespread adoption and become an effective marketing tool. Refer Earn Apps function by encouraging users to spread the word about the app to their network & by utilizing the power of word-of-mouth marketing.