Learn React vs PhysicsViz

Learn React by building, not just watching. Interactive lessons take you from your very first component to complete, working web apps — with an AI mentor answering your questions at every step. React is the most in-demand frontend skill in the world, and this app turns it into bite-size lessons you can actually finish: read a concept, write real code, get instant feedback, move on. No video marathons. No setup. Just you, a code editor and steady progress. WHAT YOU'LL BE ABLE TO DO • Build modern web apps with components, props and state • Master React hooks — useState, useEffect and your own custom hooks • Write clean JSX and handle events, forms and lists with confidence • Manage app-wide state and share data between components • Fetch data from APIs and render dynamic, real-world content • Structure projects the way professional React developers do YOUR LEARNING PATH 1. Foundations — JSX, components, props and your first interactive UI 2. Core React — state, hooks, events, forms and conditional rendering 3. Real apps — lists and data, API calls, state management and project structure 4. Job-ready — patterns, best practices and portfolio-level projects EVERYTHING YOU NEED IN ONE APP • 85+ courses and 320+ interactive lessons, beginner to advanced • Built-in code editor — write and run real code right on your phone • AI mentor, 24/7 — stuck on a lesson? Ask anything and get a clear, personal explanation • Bite-size format — most lessons take under 5 minutes • Quizzes and coding challenges that lock in what you learn • Earn certificates as you complete courses • Learn in 20+ languages TOPICS COVERED Components · JSX · Props · State · Hooks · Events · Forms · Lists & Keys · Conditional Rendering · Context · Redux · Routing · API Calls · Performance · Best Practices WHY IT WORKS Passive tutorials fade within days. Here, every lesson is interactive: you predict, type, fix and run code from the first screen. Small daily wins beat weekend marathons — and with an AI mentor in your pocket, you are never stuck alone at 11 pm. WHO IT'S FOR • Complete beginners with a little HTML, CSS or JavaScript • Developers coming from another stack who need React fast • Students and self-taught coders building a portfolio • Anyone preparing for a frontend developer interview START FREE TODAY Download Learn React: Build Web Apps and finish your first lesson in the next five minutes. Your first course is free — the web apps you have been meaning to build are closer than you think. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.coddykit.com/terms/privacy-policy

PhysicsViz is an interactive AP Physics simulator designed to help students visualize and understand core physics concepts through real-time animations. FEATURES: • 9 fully interactive AP Physics 1 simulations • Adjustable sliders — change mass, angle, speed, and more in real time • Live readouts showing forces, velocity, energy, and momentum • Visual force diagrams with labeled arrows • Preset scenarios to explore edge cases instantly • AP Physics 2 and C lessons coming soon TOPICS COVERED (AP Physics 1): • Kinematics & Projectile Motion • Forces & Newton's Laws • Work, Energy & Power • Linear Momentum • Torque & Rotational Dynamics • Circular Motion • Oscillations (SHM) • Fluids & Buoyancy Built for AP Physics students who want to go beyond equations and actually see the physics.