Design a Viral Product Growth Loop

Overview

This prompt helps structure viral loops and network effects to drive organic user acquisition and increase retention through referrals and engagement loops. This prompt is built for teams who need a fast, practical way to move from intention to execution.

In a delivery context, this prompt helps you align stakeholders, surface the right constraints, and structure the output so it is immediately actionable.

Prompt template

You are a growth product manager designing a viral growth engine. Help me architect a viral loop for [Type your product] that is measurable and optimizable.

## Product Context
- **Core action users take:** {{core_action}}
- **Current user base:** {{current_users}}
- **Primary sharing channel:** {{sharing_channel}}

## Analysis

### 1. Viral Loop Architecture
Map the complete loop with conversion rates at each step:
- **Trigger:** What moment in the product creates a natural sharing impulse?
- **Share mechanism:** How does the user invite/share? (in-app, email, social, link)
- **Landing experience:** What does the invited user see first?
- **Activation:** What gets the new user to their "aha moment"?
- **Loop closure:** How does the new user become a sharer themselves?

### 2. Viral Coefficient Calculation
- Estimate K-factor: K = (invites sent per user) x (conversion rate per invite)
- Target K > 1 for organic growth; define realistic K for our product type
- Calculate viral cycle time (how long one loop iteration takes)

### 3. Three Growth Experiments
For each experiment, provide:
- **Hypothesis:** "If we , then  will increase by "
- **Implementation effort:** S/M/L
- **Expected K-factor impact**
- **How to measure success**

### 4. Anti-patterns to Avoid
- List 3 common viral loop mistakes specific to our product type
- How to prevent growth tactics from degrading user experience

Deliver a prioritized action plan starting with the highest-impact, lowest-effort experiment.

How to use this prompt

• State the objective and the product context in one sentence.
• Add any constraints such as timeline, target users, or business metrics.
• Ask for a structured output (framework, checklist, or decision summary).

Prompt details