As a marketing tool, the Refer and Earn app pays users for bringing new users to the platform. Members are given a special code or link to recommend posh rummynew members. The referring user receives credit for the referral when someone signs up using this link or code. Rewards may take the form of money, gift cards, discounts, or other incentives, based on the rules of the particular app. Both users and the app company gain from this referral scheme.