Incentivize customer referrals.

A referral program turns existing customers into a source of new ones by giving them a reason and an easy way to share. Because the recommendation comes from someone the new person already trusts, referred users tend to sign up and stay at higher rates. The important condition is that people already like the product enough to talk about it: a referral program amplifies that sharing, it does not create it.

When it fits

• You already have satisfied customers and some organic word of mouth you can measure.
• There is a natural moment to ask, and a reward that suits your audience.
• You can instrument the loop, including attribution and reward fulfillment.

When it doesn't

• Retention is weak. A referral program on top of high churn mostly brings in more people who will also leave.
• The incentive feels bought rather than earned, which tends to attract low-intent referrals.

The trade-off

Referrals are among the most trusted ways to grow, but they multiply demand you already have rather than generating it on their own. The practical order is to strengthen retention and confirm that some sharing already happens, and only then build the program to amplify it.

For a deeper treatment, see Referral Mechanics: The 13 Metrics That Tune the Loop.

How to run a first test

You can get a read within a few weeks without building much:

1. Check that there is organic sharing to amplify — for example, do some new users already say a friend told them about you? If not, address that first.
2. Stand up a simple loop with an off-the-shelf tool such as Rewardful or Friendbuy rather than building one from scratch.
3. Choose a single reward and a single moment to ask. Measure how many people take part and how many shares turn into signups, rather than link clicks on their own.
4. Look at whether each group of referred users brings in the next. If that contribution is meaningful and retention holds up, it is worth investing in a more permanent, built-in version.

See Systematic Channel Testing.

Tools & services to activate it

• Rewardful — Referral and affiliate tracking for SaaS, native to Stripe. (From ~$49/mo)
• Friendbuy — Referral and loyalty program platform for consumer brands. (Custom)
• Referral Rock — Configurable referral programs for B2B and services. (From ~$200/mo)
• Viral Loops — Templated referral and waitlist campaigns. (From ~$49/mo)

Related channels

More in Referrals: Word of mouth (organic).

Related reading

• Viral coefficient / k-factor
• Referral Mechanics: The 13 Metrics That Tune the Loop
• Systematic Channel Testing: How to Find Your Channel Without Burning the Budget