Growth by design. Not by chance.
Build a business
that spreads.
Great products don’t spread on their own. Explore the product and distribution mechanics that turn one customer into the next.
Built for founders, product teams, and curious builders.
What to expect
Mechanics over buzzwords
Real examples, not invented results
No promises of overnight growth
01 / The growth map
Two sides. One engine.
Make something worth returning to. Then make it easy to bring someone along. Open a mechanic to go deeper.
The product side
01 — Deliver the first win
Identify the moment a new customer understands the value. Remove unnecessary steps between signing up and reaching that moment.
02 — Build a reason to return
Connect repeat use to a genuine benefit. Duolingo’s streaks illustrate how visible progress can encourage a learning habit.
03 — Make value shareable
Look for outputs, milestones, or collaborative moments people naturally want to share. Let sharing serve the user, not just your acquisition goals.
The distribution side
Give value a way out.
Turn everyday use into an introduction to the next customer.
04 — Align the incentive
Dropbox rewarded invitations with extra storage. The reward reinforced the product’s value instead of introducing an unrelated prize.
05 — Embed the invitation
Hotmail put a signup invitation in email signatures. Distribution traveled with an action customers already performed.
06 — Close the loop
Track whether invitations become active customers who invite others. Reach alone is not a self-sustaining growth loop.
The viral coefficient
K > 1
One customer brings in more than one.
K = invitations per customer × the share of invitations that convert. Above 1, the loop can grow on its own. Retention and the time between invitations still matter.
For instance: 5 invitations × 25% conversion = 1.25 new customers.
Start with the mechanism
Find your next growth loop.
Choose one mechanic. Connect it to real customer value. Test whether it brings the next person in.