Referral Viral Loops

Overview

Word-of-mouth referral programs are one of the lowest-cost customer acquisition channels — referred customers have 37% higher retention rates and 25% higher LTV than non-referred customers. A dual-sided referral (reward both the referrer and the new customer) typically outperforms one-sided rewards by 2–3×. Dedicated referral apps (ReferralCandy, Friendbuy, Yotpo Loyalty) handle link generation, reward fulfillment, and fraud controls without custom code.

When to Use This Skill

• When CAC is high and word-of-mouth is underutilized
• When existing customers frequently refer friends informally but there is no structured program to track and reward it
• When needing to scale a referral program that has been running manually
• When wanting to calculate K-factor and optimize the program's viral coefficient

Core Instructions

Step 1: Choose the right referral platform