Stop 09 · Growth Marketing & ExperimentationTopics · 6/9

Referral Programs

In short

People trust a friend's tip more than any ad. A referral program gives happy customers a nudge and a reason to share, and rewards them when friends join.

Incentivizing existing customers to bring in new ones, typically with a reward for both sides — one of the most reliable and low-CAC growth loops when the core product genuinely delivers value.

The blob barber holds scissors and a comb beside a barber chair, welcoming two new friends.

Think of it like this

The barber's free shave

The local barber tells regulars: 'Bring two friends this month and your next shave is free.' Regulars bring friends who already trust the shop because a friend vouched for it. He spent one shave and gained two customers.

Watch it happen

A double-sided referral, step by step

Customer

Friend

App

Your code: RIYA50

1/5After a great first order, the app offers a personal referral link or code.

The big ideas

What you need to know

Double-sided rewards

Rewarding both the referrer and the friend usually works better than rewarding just one.

Ask at the happy moment

Prompt right after a great experience, like a delivered order or a finished lesson.

Make sharing one tap

A pre-written message and share button for WhatsApp beats a code people must copy.

Guard against abuse

Reward only after a real purchase, and watch for self-referrals and fake accounts.

Save yourself the pain

Common mistakes

Oops

Paying the reward the moment the friend signs up.

Do this instead

Wait for a real action, like a first paid order, or fake sign-ups will drain your budget.

Oops

Hiding the referral program deep in settings.

Do this instead

Show it where happy users already are, like the order confirmation screen.

Your mission

Design a referral program

~25 min

Quick check

Your referral program pays ₹100 per sign-up, and sign-ups exploded but orders didn't. What happened?

Go deeper

1Design a referral program structure (incentive, mechanism) for a hypothetical product.
2Study a real referral program you've used and evaluate whether the incentive felt worth it.
3Learn why referral programs rarely work well until the core product has strong retention.