Referral Program Designer

---
title: "Referral Program Designer Prompt — Loops Built on Moments, Not Wishful Math"
author: "Mahmoud Omar"
author_url: "https://mahmoudomar.com"
category: "growth"
type: "prompt"
level: "advanced"
works_with: "Claude, ChatGPT, Gemini"
language: "EN"
last_verified: "2026-07-03"
hook: "Every founder wants 'a Dropbox referral program'. Dropbox's viral coefficient peaked around 0.5 — even the legend didn't do what the legend says."
email_subject: "Design a referral program on real math (not the Dropbox myth)"
short_pitch: "Feed this prompt your product and get a complete referral program design: the trigger moment, two-sided incentive matched to your unit economics, fraud guards, and honest projections — with the viral-coefficient math done truthfully."
---

# Referral Program Designer Prompt

> Design a referral program as an engineered loop: the moment worth asking at, incentives priced against your real unit economics, fraud guards from day one — and projections computed honestly, because sustained K>1 virality is essentially a myth.

## ⚡ What it does

Referral programs fail in two standard ways: bolted-on (a "refer a friend" link in the footer, asked of everyone at no particular moment) and over-promised (modeled at viral coefficients no product sustains). This prompt designs the real thing — trigger moment, incentive structure, delivery mechanics, fraud economics — and forces the projection math to use published reality: referred customers are worth more (+16% LTV, 18% lower churn per the canonical Wharton study), but referral is an amplifier on retention, not a substitute for acquisition.

## 🎯 When I use it (real scenario)

Referral comes up in every growth-model conversation (it's the loop everyone wants in the [Growth Strategist](../../agents/growth-strategist-agent.md) sessions), and the design questions are always the same three: WHEN do we ask (the moment of maximum delivered value, never signup), WHAT do we pay (both sides, priced against margin, in product-currency where possible), and HOW does it not get gamed (COD markets and coupon communities find every hole). This prompt is those three questions industrialized, with the fantasy-math firewall built in.

## 📋 The Prompt