Growth Hacking
Growth Hacking is a data-driven approach to rapid experimentation across marketing channels, product development, and engineering to identify the most efficient ways to grow a business. Popularised by Sean Ellis and used by startups like Dropbox, Airbnb, and Facebook, it focuses on finding scalable, repeatable strategies for user acquisition, activation, retention, referral, and revenue — the AARRR (Pirate Metrics) funnel.
- Rapid Experimentation: Test ideas quickly to find what works before committing resources.
- Data-Driven Decisions: Every growth initiative is measured and optimised based on real metrics.
- Cost-Effective Scaling: Focus on high-leverage tactics that deliver disproportionate growth relative to spend.
- Cross-Functional Collaboration: Bridges marketing, product, and engineering for unified growth efforts.
- Customer-Centric: Deep understanding of user behaviour drives smarter acquisition and retention strategies.
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How to apply Growth Hacking:
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1. Define Your North Star Metric: Identify the single metric that best captures the value your product delivers to customers.
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2. Map the AARRR Funnel: Understand where users drop off across Acquisition, Activation, Retention, Referral, and Revenue.
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3. Generate Hypotheses: Brainstorm high-impact, low-effort experiments targeting funnel weak points.
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4. Prioritise with ICE/RICE: Score experiments by Impact, Confidence, and Ease to decide what to test first.
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5. Run Experiments: Execute rapid tests with clear success criteria and timeframes.
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6. Measure and Learn: Analyse results, document learnings, and double down on what works.



