Nir Eyal, a renowned behavioral designer and former Stanford lecturer, wrote "Hooked" to demystify the psychology behind technology products that capture our attention so relentlessly. The book was born from his observation that while many companies understood the what of user engagement, few had a systematic framework for the how . Written for anyone seeking to understand how products influence behavior, "Hooked" distills years of research, consulting, and practical experience into a manual for creating products that users can't put down.
An investment should automatically set up an external trigger for the future. For example, sending a message on WhatsApp (investment) prompts a reply from the recipient, which results in a push notification (the next external trigger).
Nir Eyal introduces the Hook Model as a four-step process embedded into the user experience, designed to build habits over time. When repeated, these steps form a cycle that brings users back again and again. 1. The Trigger hooked how to build habitforming products download pdf free
The author frequently posts articles summarizing the Hook Model and updates his concepts.
If you are currently building an app or a digital business, what specific does your product aim to address for your users? Share public link Nir Eyal, a renowned behavioral designer and former
Human psychology is deeply enticed by unpredictability. Fixed rewards create satiation, causing users to lose interest quickly. Variable rewards keep the brain craving more by utilizing the dopamine spikes associated with anticipation. Eyal categorizes these rewards into three types:
[1. Trigger] ----> [2. Action] ^ | | v [4. Investment] <---- [3. Variable Reward] Step 1: The Trigger An investment should automatically set up an external
[1. TRIGGER] ---> [2. ACTION] ^ | | v [4. INVESTMENT] <--- [3. VARIABLE REWARD] 1. Triggers
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Behavior=Motivation×Ability×PromptBehavior equals Motivation cross Ability cross Prompt