Growth frameworks, plainly
The AARRR framework — pirate metrics, for a business that isn't a startup
Five stages, one memorable acronym, and a model that was written for software companies. It works for an ordinary business too, but not unchanged — and nobody tells you which parts to change.
The 5-Stage Conversion Filter
Dave McClure originally formulated AARRR (Acquisition, Activation, Retention, Referral, Revenue) for Silicon Valley tech startups.
For an owner-run service or physical business, it serves as an engineering blueprint to diagnose where your funnel is leaking customers—and which stage will generate the highest ROI to fix first.
What AARRR stands for
The AARRR framework, commonly called pirate metrics because the acronym reads as a pirate's growl, breaks the customer journey into five stages: Acquisition, Activation, Retention, Referral and Revenue. It was introduced by the investor Dave McClure in 2007 as a way to reduce a business to the handful of numbers that actually predict whether it grows.
Its point is subtraction. Most businesses track what is easy to count — followers, page views, impressions — and those numbers can all rise while the business does not. AARRR names five stages that cannot rise without the business improving, and asks you to find the one that is stuck.
The five stages
- AcquisitionHow do people first find you?
- ActivationDo they get value quickly?
- RetentionDo they come back?
- ReferralDo they tell anyone?
- RevenueDoes any of it pay?
Each stage holds fewer people than the one before it. Finding the stage where the drop is steepest is the entire exercise.
What to count at each stage
| Stage | What it asks | What a small business can actually count |
|---|---|---|
| Acquisition | How do people first find you? | Inquiries, walk-ins, calls, form submissions, where each one says it came from |
| Activation | Do they get value quickly? | First purchase, first appointment kept, first order completed without help |
| Retention | Do they come back? | Repeat customers as a share of the total, months since each customer last bought |
| Referral | Do they tell anyone? | Customers who say they were recommended, reviews left, referral codes used |
| Revenue | Does any of it pay? | Average order value, revenue per customer, what a customer is worth over a year |
What changes when you are not a startup
Every well-ranked explanation of AARRR is written by a product-analytics company for product managers at software companies. That is not a criticism of them — it is who the model was built for, and the language shows it. Four things genuinely differ for an ordinary business.
You have customers, not users. The distinction matters because a software product can watch every click, and you cannot. Your equivalent of a funnel is a handful of moments you can actually observe: an inquiry, a first purchase, a second one.
Activation is not onboarding. For a shop or a service business it is the first genuinely good experience — the first appointment that ran on time, the first order that arrived right. If a first-time customer does not come back, activation is the stage to look at, not acquisition.
You do not need an analytics stack. The entire framework can be run from what a business already has: a booking calendar, a card terminal's export, an order history, and a habit of asking new customers how they heard about you. A spreadsheet is enough. The measurement is not the hard part; deciding what to do about it is.
Referral is usually the cheapest stage and the last one anyone works on. A software company has to build referral into the product. A local business can ask, at the moment a customer is visibly happy — and almost none do.
Which stage to fix first
One rule, and it is the only prioritization the framework needs: fix the earliest stage that is leaking, not the one that looks worst.
Spending on acquisition while retention leaks is the most expensive mistake available in this model, and the most common. More customers arriving at a business they do not return to costs money per customer and changes nothing about the trajectory. The order is deliberate: get people in, make the first experience good, get them back, get them talking, then work on what each one is worth.
Two worked examples
Illustrations, not clients — the shapes these businesses take, so you can see where your own would sit.
A local coffee shop
- Acquisition — targeted local social ads, and a partnership with a nearby business whose customers overlap. Counted by asking.
- Activation — a free coffee for a first visit in exchange for joining the loyalty scheme, so the first visit is both good and recorded.
- Retention — the number that matters most here. What share of loyalty members bought anything in the last month? A café lives on repeat trade.
- Referral — a discount for both sides of a recommendation.
- Revenue — average spend per visit, and whether a premium item moves it.
An online handmade jewelry shop
- Acquisition — search and social bringing people to the site, with each channel counted separately or none of it is decidable.
- Activation — a first-order discount for joining the email list, which turns an anonymous visit into someone reachable.
- Retention — new-product emails to previous buyers. In a shop with no subscription, the email list is the retention mechanism.
- Referral — a code both the referrer and the new customer can use.
- Revenue — repeat-customer revenue as a share of the total, and whether a subscription box makes it steadier.
The value of running this is not the numbers themselves. It is that "growth is slow" becomes "retention is the leak", which is a problem with an obvious next action instead of a feeling.
Common questions
What does AARRR stand for?
AARRR stands for Acquisition, Activation, Retention, Referral and Revenue — the five stages of the customer journey in a growth framework introduced by the investor Dave McClure in 2007. It is commonly called "pirate metrics" because the acronym reads as a pirate's growl.
Why is AARRR called pirate metrics?
Because the five initials spell AARRR, which reads as the noise a pirate makes. The name is a mnemonic and nothing more, but it is the reason the framework is remembered when more rigorous models are not.
Does the AARRR framework work for a small business, or only startups?
It works, with translation. The model was written for software startups with product telemetry, so its language assumes users, onboarding and analytics. A small business has customers, first experiences and a booking calendar or an order history instead. The five stages hold; the metrics under them change, and everything the framework needs can be counted from records a business already keeps.
Which AARRR stage should I work on first?
The earliest stage that is leaking, not the one that looks worst. Spending on acquisition while retention leaks is the most common and most expensive mistake in this model — more customers arriving at a business they do not return to costs money per customer and changes nothing.
What tools do I need to use AARRR?
None beyond what most businesses already have. A booking calendar, an order or sales history, and the habit of asking new customers how they heard about you will populate all five stages. A spreadsheet is sufficient. Analytics software makes measurement faster; it does not make the decisions any easier.
What is the difference between activation and acquisition?
Acquisition is someone finding you. Activation is that person having a first experience good enough to make a second one likely. They are separated because the fixes are completely different: an acquisition problem is about where you appear, and an activation problem is about what happens once someone arrives.
Not sure which stage is leaking?
That is usually the actual question, and it is answerable from records you already keep. Tell us what you can see and we will tell you where to look — and whether you need help doing it.