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Start for freeThe Hook Model is a four-step process designed to create habit-forming products by encouraging customer behaviors that increase engagement and retention.
Synonyms: Habit-forming product model, Engagement loop, User retention framework, Behavioral design model

The Hook Model, developed by Nir Eyal, consists of four main stages:
Product managers use this model to create products that users engage with frequently and voluntarily.
The Hook Model is crucial for product managers because:
Social Media: Notifications (trigger) lead to checking the app (action), seeing new content (variable reward), and posting or interacting (investment).
E-commerce: Email about a sale (trigger) leads to browsing (action), finding deals (variable reward), and adding items to a wishlist (investment).
Fitness Apps: Daily reminders (trigger) prompt workout tracking (action), progress visualization (variable reward), and data input (investment).