Architecture Notes
3.3.3 · Marketing

Turning Users into Fans — When Experience Starts the Viral Loop

2026.07.11~4 min

00Overview

01Story

Situation

3.3.2 Earning trust got us to "I'll give it a try." DECAX ends with Action (use) and eXperience (sharing the experience).

Complication

But if one person uses it once and stops, the story stops with them. With no ad budget, the power to reach the next person can't come from my side of the table. The fuel for spreading simply isn't there.

Question

How do the people who use it become the ones who spread it?

02Solution

Criteria

  • Spread without ad spend
  • A user's experience leads to the next discovery
  • One fan can meet more than one product

Answer

Let the good experience be shared.

Experience produces the share,
and the share becomes someone's discovery.

That is the viral loop: discovery → trust → action → experience → someone else's discovery, closing into a circle. Alongside it, in-app links point to my other apps, so a fan of one product can meet the others. Cross-selling.

Reason

Because with no ad money, the spreading rides on shared experience. Even without the power to push, a person who had a genuinely good experience wants to tell someone. That one share rides the social feed and becomes a stranger's Discovery. Once the loop starts turning, spread feeds spread at zero budget. Cross-selling adds depth per fan to the loop's width.

Options

  • Referral incentives (rewards for sharing) — spread accelerates, but it needs funding, and reward-driven shares run thin. The bet went to shares whose only motive is the experience itself.

03Result

Good

Discovery, trust, action, experience, rediscovery — the loop has begun to turn. Encounters that were dots became a line, and the line a circle. That completes marketing's first lap.

Bad

Until the loop gains momentum, spread is meagre. Small numbers mean shares are rare events. The early game is an exercise in enduring the quiet.

Follow-up

Some things only a finished lap can teach: where people left, what actually worked. Observing that and fixing it is 3.4 The improvement loop.