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The Hook Model: A Guide to Building Habit-Forming Products

The Hook Model: A Guide to Building Habit-Forming Products

22 min read
4477 words

Did you know that nearly 80% of daily active users of top mobile apps come from ingrained habits? People who open an app like Instagram or TikTok often do so without a conscious thought. This isn’t accidental; it’s the result of a meticulously designed psychological framework known as the Hook Model.

The Hook Model is a four-step cycle—Trigger, Action, Variable Reward, and Investment—developed by author Nir Eyal. It serves as a blueprint for product designers and engineers to build technologies that become an integral part of users’ daily routines, effectively turning casual users into highly engaged, long-term advocates.

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