Refer and Earn apps are mobile applications that incentivize users to promote the app to their social network. To share with others, users are given a special crami gameode or link for referrals. Referrers receive incentives like points, money, or discounts when new users sign up through this link or code. By means of personal recommendations, this marketing tactic aids businesses in gaining new clients. Numerous industries, including e-commerce, finance, and gaming, use these apps.