AARRR (Pirate Metrics) is a growth marketing framework that breaks down the customer journey into five key stages: Acquisition, Activation, Retention, Referral, and Revenue. Created by Dave McClure, it helps startups and marketers systematically track user behavior, identify bottlenecks, and prioritize growth experiments. Each stage represents a critical point in the funnel, from attracting users to turning them into loyal, paying advocates. AARRR enables data-driven decision-making across the full lifecycle.
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