Principles In Action

Principles In Action

By Ray Dalio

6.1K ratings
142 reviews
Free

Details

  • Released
  • Updated
  • April 5, 2019
  • April 27, 2026

Features

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About

Explore life and work principles from a renowned investor through interactive case studies, video footage, and assessments. Discover personalized guidance and compare insights with friends to achieve your goals.

Interactive case studies
Behind-the-scenes video footage
PrinciplesYou Assessment
Personality test
Daily principle from Ray
Digital 'Coach' for principle guidance
Personal principle development section
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What users say

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What's New in Principles In Action

6.0.0

April 27, 2026

Welcome to Digital Ray! Digital Ray is the new Coach, it is an Al tool that shares Ray Dalio's unique insights and decision-making principles with users. We're excited to bring you following features: Real-time Online Information: Digital Ray uses real-time online data for up-to-date, relevant advice. Active Interaction: Digital Ray actively asks questions to understand you better and improve response accuracy. Question Hints: To enhance your user experience, Digital Ray will generate question hints beneath certain answers. Comment and Rate: You can give feedback by adding a comment and/or rating the response provided by DigitalRay to your query. Profile Narrative: Your profile features a narrative-style summary that evolves naturally based on your conversations with Digital Ray. Learn About Me: Digital Ray will utilize your profile data to provide personalized responses based on your preferences. Concise Mode: When enabled, Digital Ray provides shorter, more direct responses focused on the most relevant information rather than extended explanations. Beta Mode: Digital Ray uses ‘Beta Mode’ to offer informed speculation when direct answers from Ray Dalio's knowledge base are unavailable. Feedback Survey: Want to help improve Digital Ray? We've added a feedback survey and would love to hear your thoughts.

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User reviews

The best app on the Apple App store

This is by far the most profound app for personal and professional success that you can find out there.

Valore immenso

Il valore di ciò che Ray condivide gratuitamente è intenso. Quest’app ne è profondamente ricca. Grazie

Fantastic app by Ray Dalio

Very useful economic and personal growth principles and study cases. Obviously, for those in finance there is no need for introduction who Ray Dalio is!

I love this

This app has become important in my daily routine. Internalizing Ray's perspectives in life and business has greatly contributed to my evolution. Really grateful for this.

Review

Great App and also great Book!!

Tiny detail about an improvement in the app.
Clicking the favorite heart icon in the Principles section, is quite difficult. It seems a a bit unresponsive or as if it needs to be clicked in a very small spot. I often have to click many times before it responses.

User experience

🐞

Reported Bugs

4 issues

Frequent crashes

Bug

Inability to open book or case studies

Bug

Lost progress and saved data

Bug

Compatibility issues with older devices

Bug

Requested Features

4 requests

Dark mode option

Feature

Ability to export user-added principles

Feature

Improved sync across devices

Feature

Better integration with book content

Feature

FAQ

What is Principles In Action?

Principles In Action is a free app that brings Ray Dalio's best-selling book 'Principles: Life & Work' to life. It offers the complete text of the book, exclusive video footage, and interactive case studies demonstrating the principles in action at Bridgewater Associates.

What are the key features of the app?

The app includes interactive case studies, behind-the-scenes videos, the PrinciplesYou Assessment to compare with friends, a personality test, daily principles from Ray, a digital coach for guidance, and a section to develop your own principles.

Is there a cost to use Principles In Action?

No, Principles In Action is a free app. It does not have in-app purchases or advertisements, providing full access to its content without any cost.

Who is this app designed for?

This app is designed for anyone looking to improve their life and work outcomes by understanding and applying unconventional principles that have led to unique results in business and investing. It's beneficial for individuals, leaders, and organizations aiming to achieve their goals.

How can the app help me find the right principles for my situation?

The app features a digital 'Coach' designed to help you easily find appropriate principles for specific situations you are facing. This feature acts as a guide, suggesting relevant principles based on your challenges.