book covers hooked

A One-Page Summary Of


How to Build Habit-Forming Products

The Main Idea

What makes some products so habit-forming?

This is not really just an idle question. The market values of many enterprises today are based in large measure on the strength of the consumer habits their products and services generate. If you can design and engineer your products and services so that customers form habits of use, there will be significant benefits to your bottom line.

So how do you achieve it? At one time, companies would advertise extensively to try and get consumers to form a habit. Today, designers build hooks into their products and services — the more you use them, the more you get hooked.

Specifically, the key to forming a habit is the "Hook Model" which looks like this:

T — Trigger — You alert users they should be using your product as part of their everyday routine.

A — Action — You get users to do something which is easy and simple to describe.

R — Rewards — When users do what you suggest, they are dazzled and also intrigued by the fact variable rewards are on offer.

I — Investment — You offer the user an opportunity to put something into the product to make it even more valuable in the future, which in turn encourages them to go through the cycle again.

Get consumers into the habit of using your product or service on a daily basis and you make what you offer indispensable. That's a great place to be.

The Hook Model for Habit-Forming Products

1. Why habits are good for business. If you can get customers to use your product with little or no conscious thought and make it part of their daily routine, it stands to reason you will sell them more in the future. Habit-forming products normally start as something nice-to-have but then once the habit is ingrained become must-haves.

2. The Hook Model of habit formation. The Hook Model is all about connecting the user's problems to your solutions frequently enough to form a habit. The four components of the Hook Model are:

>Trigger — You need something to happen as frequently as possible which reminds people to use your product. Triggers can be external or internal.

>Action — The various things users do in anticipation of the reward you offer. This will be amplified if the action is easy to do and is simple to describe.

>Rewards — You create a craving by offering a variable reward. The more consumers do what you want, the better the rewards they secure. Variability feeds the habit.

>Investment — If you can get the user to invest their time, data or money into the product, that enhances the prospect they will follow-up and reuse the product again.

3. How to use the Hook Model to best effect. The Hook Model is all about getting customers to make using your product a habit. You build long-term engagement by solving their problem. To use this to best effect, put yourself in a position where you can genuinely say "Yes, I would use the product myself," and "Yes, my product helps users materially improve their lives." If you can do that, you're a facilitator, not a manipulator.

4. Where to look for habit-forming opportunities. Once you have a live product in the marketplace, you can enhance its capacity to form a habit by doing three things:

  1. Identify how people are actually using the product.
  2. Codify the actions and paths your habitual users are presently taking.
  3. Modify the product to allow more people to follow the path of your habitual users.

About the Authors

Nir Eyal is a start-up business consultant who helps companies build better products. Since 2003, he has founded and sold two technology companies, one of which attracted venture capital backing. He was formerly a lecturer at Stanford's Graduate School of Business and Stanford's Institute of Design and has worked in the video gaming and advertising industries. Mr. Eyal is a contributing writer for Forbes, TechCrunch and Psychology Today. He is a graduate of the Stanford Graduate School of Business.

Ryan Hoover is a writer. His work has been published in Forbes, FastCompany and PandoDaily. He is also a keen observer of product trends and was previously Director of Product at PlayHaven, a business engine for mobile game developers.

Digital business skills Mini-Course

This minicourse will help you identify the skills you need to excel in the digital age. This mini-course includes 8-page summaries of the following top business books:

Buy Mini-Course
book covers hooked
Summary published in 2014

How to Build Habit-Forming Products

by Nir Eyal and Ryan Hoover

book covers indistractable
Summary published in 2019

How to Control Your Attention and Choose Your Life

by Nir Eyal

book covers the power of pull
Summary published in 2010
The Power of Pull

How Small Moves, Smartly Made, Can Set Big Things in Motion

by John Hagel III and John Seely Brown

book covers play bigger
Summary published in 2016
Play Bigger

How Pirates, Dreamers, and Innovators Create and Dominate Markets

by Al Ramadan and Dave Peterson

book covers persuasion
Summary published in 2005

The Art of Getting What You Want

by Dave Lakhani