Metric · Hooked
Hook cycle time
Median time from an investment that loads a trigger, to that trigger's delivery, to the session it starts. Shorter cycles mean more loops and faster habit formation.
Plain label: time from investment to the next visitAlso known as: cycle time, loop time
Hooked's point: the faster a user passes through the loop, the faster the habit forms, so ask what would halve the time from investment to return. HK-Q110 (Hooked Ch.5) A leading proxy for Return experiments, readable well before habitual rate matures.
Limits
What we don’t claim
- The Hook Model is a practical design tool, not a validated or complete theory of behavior.Hooked, Introduction
Sources
Hooked · Nir Eyal
Ch.5
Source IDs: HK-Q110
Book content is paraphrased, never quoted at length. Last verified October 24, 2026.
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