Word-of-mouth marketing

Word-of-mouth happens naturally when customers love a product. Referral programs structure and incentivise this natural behaviour — giving customers a link to share and a reason to share it. The word-of-mouth mechanic is preserved: the recommendation comes from a trusted person. The referral program simply adds an incentive and a tracking mechanism.

Word-of-mouth is considered the most credible form of marketing because it comes from a trusted source with no financial incentive (from the customer's perspective). Customers acquired through word-of-mouth or referral tend to have higher LTV, lower churn, and higher NPS than those from paid channels — they came in with a positive predisposition.