With this model, the app company grows its customer base and users get paid for referring others, creating a win-win situation for both parties. Refer and earn ateen pattapps are prevalent across multiple industries, including e-commerce, finance, and food delivery. Today, businesses looking to grow their clientele and raise their profile can effectively use them as a marketing tool. These apps give users an easy way to get rewards without having to spend a lot of money or time on them.