AARRR Pirate Metrics
Acquisition, activation, retention, referral, revenue.
Your biggest leak is Referral at 14.3%. Fix this before optimizing anything upstream.
Why it works▾
Most teams optimize acquisition when the leak is activation. AARRR forces you to look at the whole funnel before touching the top of it.
When to use▾
Early-stage products or any team that can't articulate where users actually drop off.
Steps in detail▾
Acquisition
How users find you. Track by channel and by intent — a signup from a comparison keyword behaves nothing like one from a viral tweet.
Activation
The first moment of real value. Define it as a specific event, not a signup. If you can't name the event in one sentence, you don't have activation defined.
Retention
Do they come back? Cohort by signup week and measure the shape of the curve, not the average. Flat is the goal; declining is death.
Referral
Do they bring others? Measure organic k-factor before you build a referral program — a broken product with incentives just accelerates churn.
Revenue
Do they pay, and how much? Revenue is the last thing to optimize, not the first. Fix the four steps above and revenue follows.
Pitfalls▾
- 01Treating AARRR as a linear funnel — real users skip stages.
- 02Optimizing acquisition while retention is broken.