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| Criterion |  Growth Flywheel |  Growth Pirate Metrics AARRR |  Product Discovery Test Card |
|---|---|---|---|
Purposedifferent | Growth often breaks down where a reinforcing mechanism builds up too much friction. A Flywheel shows the cycle of value, repetition, and reinforcement meant to sustain growth. | For products with complex usage paths, overall growth alone is too coarse to reveal bottlenecks. Pirate Metrics breaks the relationship with the product into consecutive stages and shows where the funnel actually leaks. | The Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success. |
Complexitydifferent | Medium | Medium | Low |
Timedifferent | 60-120 min | 1-2 h Setup, laufend | 20-35 min |
Participantsdifferent | 3-8 | 2-8 | 1-5 |
Formatdifferent | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Flywheel Map, Friction Points, Growth Levers, Experiment Backlog | AARRR funnel, Metric baseline, Experiment backlog | Test Card with a pre-set threshold |
Tagsno overlap | GrowthRetentionConversion | GrowthMetricsExperiments | ExperimentsValidationDiscoveryHypothesis |
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