Referral systems typically integrate with web apps by generating unique links or codes for users to share. When a new user signs up or makes a purchase through these shared links, the system tracks the referral source. This often involves backend logic that records the referrer's ID and the referred user's activity. The integration usually leverages APIs or SDKs to seamlessly embed referral tracking, reward distribution, and user dashboards into the existing application infrastructure. Furthermore, webhooks can notify the app of successful referrals, triggering automated rewards for both parties, such as discounts, credits, or premium features. This creates a mutually beneficial cycle, encouraging existing users to promote the app while expanding its user base organically. More details: http://vosg.us