Glossary · Growth

AARRR (Pirate Metrics)

AARRR — nicknamed 'Pirate Metrics' — breaks the customer lifecycle into Acquisition, Activation, Retention, Referral, and Revenue. Measuring each stage shows exactly where users drop off so teams can focus on the biggest leak rather than the loudest idea. It's a shared language for diagnosing and improving the growth funnel.

Related terms

Activation

The moment a new user first experiences the product's core value.

Retention

The rate at which users keep coming back and continue to get value over time.

Customer Acquisition Cost (CAC)

The total sales and marketing cost to acquire one new paying customer.

Go-to-Market (GTM)

The plan for how a product reaches and wins customers across channels and pricing.

Put the method into practice.

Prodstack is the AI product operating system that turns terms like this into shipped, evidence-backed work — from discovery to growth.

Start your 7 days free trial