Principles In Action vs Codewise

Principles In Action is a free app that brings to life Ray Dalio’s best-selling book Principles: Life & Work. It combines the complete text of the book with behind-the-scenes video footage and interactive case studies of the principles in action during his time leading Bridgewater Associates Ray is one of the world’s most successful investors and entrepreneurs, and he’s sharing the unconventional principles that helped him create unique results in life and business because he believes they can help any person or organization better achieve their goals. In addition to the book and supporting cases, the app also includes: • Take the PrinciplesYou Assessment in app to view results and add friends to compare. • Compare your assessment with your friends and see their results. • Read Ray's latest articles and reflections on the economy and markets. • Daily principle from Ray to help you get more out work and life. • Highlighted case-of-the-week and related principles. • Search function across all content in the app, including the full set of principles. • Converse with Digital Ray, Ray's AI twin which has been trained on tens of thousands of items from Ray's content library. • Dedicated section in the app for you to highlight, favorite, develop and record your own and others’ principles. • Additional content from Ray including studies on economics along with regular long form articles published on social media. Principles: Life & Work has been recommended by Bill Gates, Arianna Huffington, Marc Benioff, Mark Cuban, Mike Bloomberg, Gwyneth Paltrow, Kevin Systrom, Jamie Dimon, and others.

Codewise is the fastest way to go from zero to coding confidence — right from your iPhone, iPad, or Mac. Pick a language and start writing real code immediately. No fluff, no lengthy video lectures, no subscription. Just hands-on challenges that teach you the fundamentals through practice. LANGUAGES • Python • Swift • JavaScript • Java • Kotlin • C# • SQL (PostgreSQL) FEATURES • 280+ bite-sized challenges with instant feedback — write code, run it, see the result • Structured learning paths — Intro to Programming, Language Basics, Object-Oriented Programming, and Functional Programming • Functional programming in C# — lambdas, Func and Action delegates, closures, and LINQ pipelines with Where, Select, OrderBy, and Aggregate (new in 1.3) • Built-in code editor with syntax highlighting and live error hints for every language • Code runs on your device, fully offline — no account, no ads, no data collection • SQL challenges show results exactly like the psql tool, so what you learn transfers to real databases • Progress syncs across iPhone, iPad, and Mac with iCloud ONE PURCHASE, EVERY DEVICE Codewise is a one-time purchase. Buy it once and use it on iPhone, iPad, and Mac — no recurring fees, ever. Whether you're brand new to programming, preparing for an interview, or brushing up on a new language, Codewise meets you where you are and helps you level up one challenge at a time.