The AARRR funnel: pirate metrics for product growth

AARRR (called "pirate metrics" — it sounds like "arrr") is a model of five stages in a customer's life. It helps you see at which step people and money are lost. Let's break it down.

The five stages

1. Acquisition — how people learn about you and arrive (seeding, creators, ads, organic).
2. Activation — the first successful experience: the person didn't just show up but understood the value (signed up, checked out, tried it).
3. Retention — do they come back. Without retention, acquisition is pointless.
4. Revenue — they start bringing money.
5. Referral — they recommend you to others, kicking off word of mouth.

Why a marketer needs it

The model shows: the problem isn't always traffic. You can pour in great reach but lose everyone at activation or retention — and then new budget for acquisition just drains away.

How to find the bottleneck

Calculate the conversion between stages. Where the biggest drop is — work there first:

• Few arriving → an acquisition problem (top of funnel).
• Arriving but not activating → an onboarding/offer problem.
• Activating but not returning → a product/retention problem.
• Not recommending → no wow effect or referral mechanic.

The link to influence marketing

Creators and seeding work mainly on Acquisition and, through trust, on Activation and Referral. But if there's a hole further down the funnel, it's too early to scale acquisition.

Takeaway

AARRR keeps you from fixing only traffic when the leak is elsewhere: look at all five stages and patch the narrowest one. We help build acquisition that doesn't drain into a leaky funnel.