AARRR Pirate Metrics
AARRR, known as 'Pirate Metrics' for its memorable acronym, is a growth funnel framework developed by venture capitalist and entrepreneur Dave McClure, presented in a 2007 talk at 500 Startups. It maps the customer lifecycle into five sequential stages: Acquisition (how do users find you?), Activation (do users have a great first experience?), Retention (do users come back?), Referral (do users tell others?), and Revenue (do users pay you?). The framework's central insight is that most startups — and many growth teams within larger organisations — focus disproportionately on Acquisition while neglecting the downstream stages that determine whether acquired users actually generate value. A leaky funnel at Activation or Retention makes additional Acquisition spend wasteful. AARRR provides a shared language for growth discussions, a diagnostic structure for identifying the highest-leverage stage to improve, and a framework for organising experiments. In a workshop context, AARRR is used to audit the current state of each funnel stage, identify the 'biggest leak' in the funnel, and prioritise growth experiments accordingly. It is particularly powerful as a team alignment tool: different functions (marketing, product, customer success, sales) often optimise their own slice in isolation. AARRR surfaces the system-level view and reveals where cross-functional leverage points exist.
How to run it
- 1
Draw the funnel: create five vertical stages (or horizontal bands) — Acquisition, Activation, Retention, Referral, Revenue. Provide a brief definition of each stage in the context of your specific product or business.
- 2
Populate current metrics (20 min): for each stage, fill in current performance data. Key questions: Acquisition — what are your main channels and their volumes/costs? Activation — what is the key activation event and what % of new users complete it? Retention — what is your 30-day and 90-day retention rate? Referral — what is your NPS or referral rate? Revenue — what are your conversion rates from free to paid, ARPU, and LTV?
- 3
Identify the leaks (15 min): calculate the conversion from each stage to the next. Visualise the funnel with actual numbers — where does the most volume disappear? This is the 'biggest leak' in the funnel.
- 4
Diagnose the worst stage (15 min): for the stage with the largest drop-off, facilitate a root cause discussion. Ask 'Why do users fail to progress from Stage X to Stage Y? What do we know from user research, support tickets, or session recordings?'
- 5
Generate experiments for the weakest stage (20 min): for the priority stage, run a brainstorm focused on experiment ideas that could improve performance. Apply ICE or RICE scoring to prioritise the top 3–5 experiments.
- 6
Model the impact (10 min): run a quick 'funnel maths' exercise — if you improve the weakest stage's conversion by 20%, what does the downstream impact look like on Revenue? This builds the business case for prioritising the fix over acquiring more users.
- 7
Agree ownership and next steps: assign an experiment owner for each of the top 3 experiments and set a timebox for first results.
Tips
AARRR is a diagnostic tool, not a strategy in itself. The value is identifying where to focus, not declaring victory because you've filled in all five stages.
Activation is the most underinvested stage in most products. The first-use experience is where most value is lost — even small improvements here compound through the entire funnel.
Retention is the most important long-term lever. High churn makes everything else expensive. If retention is below your benchmark, no acquisition strategy will create a sustainable business.
Referral is often missing from metrics tracking entirely. Start measuring NPS or product referral loops before optimising for them.
The order of AARRR is not the order of priority. Retention usually deserves first attention, then Activation, then Revenue, then Referral, and only last, Acquisition.
Variations
Dave McClure later updated the framework to AAARRR (adding a second A for Awareness before Acquisition) for businesses where brand matters. For B2B SaaS, add a 'Expansion Revenue' stage after Revenue to capture upsell and cross-sell dynamics. For consumer apps, split Activation into 'Aha Moment' (first value realisation) and 'Habit Formation' (repeated behaviour).
Where it fits
Frequently asked questions
When should I use AARRR Pirate Metrics?â–¾
Use AARRR Pirate Metrics when you want to: Growth team sprint planning and experiment prioritisation; Marketing and product alignment on funnel ownership; SaaS business review and strategic planning; Investor presentations and growth narrative building; Post-launch product performance diagnosis; New growth lead or CPO onboarding to the business model.
How long does AARRR Pirate Metrics take?â–¾
AARRR Pirate Metrics typically takes 60–120 minutes.
How many participants does AARRR Pirate Metrics work for?â–¾
AARRR Pirate Metrics works best for groups of 3–20 participants.
What materials do I need for AARRR Pirate Metrics?â–¾
To run AARRR Pirate Metrics you will need: AARRR funnel template (5-stage), Whiteboard or large paper, Current metrics data (conversion rates, churn, referral rates), Sticky notes, Markers, Calculator or spreadsheet for funnel maths.
How difficult is AARRR Pirate Metrics to facilitate?â–¾
AARRR Pirate Metrics is rated beginner — straightforward to facilitate even without prior experience.
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Try it freeMethod descriptions on Workshop Weaver are original content written by our team, based on established facilitation practices. This method was inspired by work from Dave McClure — 500 Startups.