The referral is automatically tracked by the system, which rewards both the referrer and the new user when they click on the referral link & download the app. Because ofapk new version this easy process, refer and earn apps are becoming a popular way for businesses to get new clients & for users to get rewards with little work. 1. Uber: A well-known ride-sharing service, Uber has a generous referral program. When users bring new drivers or passengers to the platform, they can get paid in cash or receive free rides.