Businesses can expand their customer base and gain new users at a low cost by using Refer & Earn applications. Companies can use their current user base to reach new customers rather than investing large sums of money in traditionalrummy logo marketing channels. By encouraging word-of-mouth recommendations, this lowers customer acquisition costs while simultaneously fostering brand loyalty & trust. Refer & Earn apps can also assist businesses in obtaining important information about the preferences & behavior of their users. Businesses may learn more about what motivates their customers to recommend others & how to enhance their goods and services by monitoring referral trends & user interaction.