Last but not least, fraudulent refer-earn apps might not have a viable business plan or a reliable source of income to fund their referral network. To make money, they might resort to unsustainable strategies like user fraubingo and slots sitesd or deception. Let's look at two case studies to show the distinctions between legitimate and fraudulent refer earn apps. In the first example, we have "Cashback Rewards," a reputable refer earn app that pays users cash in exchange for encouraging friends to use it to shop. Users of Cashback Rewards can receive cashback rewards in the form of a percentage of their friends' purchases. The reward system is transparent and easy to understand.