Comparison

Kadmia vs Learn JavaScript | Learn JS

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Kadmia

Learn JavaScript through interactive challenges and games, focusing on fundamental programming principles rather than passive tutorials. Build your coding intuition step-by-step with engaging puzzles and immediate feedback.

Highlights
  • Interactive coding challenges
  • Gamified learning approach
  • Focus on programming fundamentals
  • Active learning methods
  • Daily progress tracking
  • Debugging practice game
Features
Read full description

Kadmia – Learn JavaScript With Games Kadmia helps you learn JavaScript by *doing*, not just watching tutorials. Most coding apps focus on passive learning—videos, long explanations, and memorization. Kadmia takes a different approach. Through interactive challenges and games, you actively build your programming intuition step by step. ### Build a Real Foundation Great programmers aren’t made by memorizing syntax. They’re built on strong fundamentals. Kadmia focuses on **first principles** of programming: * Variables and logic * Functions and flow * Problem solving * How code actually works Each concept builds naturally on the previous one, helping you develop skills that compound over time. ### Learn Through Play: Tap the Bug Our signature game, **Tap the Bug**, turns debugging into an engaging challenge. Bugs appear in your code and it's your job to spot and fix them. As you progress, the puzzles become more sophisticated—training your brain to recognize patterns and think like a programmer. It’s fast, fun, and surprisingly addictive. ### Active Learning Beats Passive Watching Instead of endless videos, Kadmia keeps you engaged with: * Interactive coding puzzles * Immediate feedback * Short learning loops * Practice that reinforces real understanding You learn faster because you’re constantly **thinking, experimenting, and solving problems.** ### Designed for Gradual Mastery Programming skill grows through consistent practice. Kadmia is designed for **daily progress**, helping you steadily expand your abilities over time. Whether you're starting from zero or strengthening your fundamentals, Kadmia helps you build the mindset and skills of a real JavaScript developer. Start learning JavaScript the way it was meant to be learned: **actively, playfully, and from first principles.**

About

Learn JavaScript | Learn JS

Master JavaScript with comprehensive tutorials, an interactive code editor, and practical examples. Learn fundamentals to advanced concepts, track your progress, and practice coding offline. Ideal for beginners and professionals looking to enhance web development skills.

Highlights
  • Comprehensive JavaScript tutorials
  • Interactive code editor
  • Quizzes and coding challenges
  • Real-world practical examples
  • Offline access to materials
  • Learning progress tracker
  • Dark mode and customization
Features
Read full description

Learn JavaScript – Your Ultimate Guide to Web Development! Unlock the power of JavaScript, the world's most popular programming language, with our all-in-one learning app. Whether you're a beginner starting from scratch or a professional looking to enhance your skills, this app is designed to guide you through every aspect of JavaScript with ease and confidence. Why Learn JavaScript? JavaScript is the cornerstone of modern web development, enabling you to create dynamic and interactive websites, applications, and much more. By mastering JavaScript, you’ll open the door to exciting career opportunities in web development, game design, mobile app development, and even artificial intelligence! App Features Comprehensive Tutorials Learn step-by-step from JavaScript fundamentals to advanced concepts like ES6, asynchronous programming, and frameworks. Well-structured topics make it easy to follow and retain concepts. Interactive Code Editor Practice writing JavaScript code in real-time without needing external tools. Get instant feedback to understand and correct your mistakes. Quizzes and Challenges Test your knowledge with engaging quizzes and coding challenges. Track your progress and identify areas to improve. Practical Examples Explore real-world examples to understand how JavaScript is applied in projects. Learn concepts like DOM manipulation, event handling, APIs, and more. Dark Mode and Customization Study comfortably with a user-friendly dark mode interface. Customize font size and themes to suit your preferences. Offline Access Access learning materials and examples even when you're offline. Learning Progress Tracker Stay motivated by tracking your completed topics, quizzes, and achievements. Topics Covered Introduction to JavaScript: Understand the basics and importance of JavaScript. Variables and Data Types: Learn how to work with numbers, strings, arrays, and objects. Functions: Master function declarations, expressions, and arrow functions. DOM Manipulation: Control web page elements dynamically. Event Handling: Create interactive web pages with event listeners. ES6+ Features: Learn modern JavaScript features like let, const, template literals, destructuring, and more. Asynchronous JavaScript: Dive into promises, async/await, and AJAX. Object-Oriented Programming (OOP): Understand classes, inheritance, and prototypes. Error Handling: Write robust code by managing exceptions and errors. APIs and Fetch: Learn to interact with web services and retrieve data dynamically. Who Is This App For? Students: Get a head start in web development with interactive tutorials. Web Developers: Enhance your skills and stay updated with modern JavaScript. Coding Enthusiasts: Build your coding knowledge from the ground up. Why Choose Our App? Beginner-Friendly: Learn at your own pace with simplified explanations. Regular Updates: Stay ahead with the latest JavaScript features and practices. Community Support: Join a growing community of learners and developers. Learn Anytime, Anywhere With our Learn JavaScript app, you can explore programming concepts on the go. Study during commutes, at your favorite coffee shop, or while relaxing at home. All you need is a mobile device to start learning and coding. Boost Your Career JavaScript is not just a skill; it’s your gateway to high-paying jobs in web development, software engineering, and beyond. By mastering JavaScript, you’ll be equipped to work on diverse projects, including web applications, server-side programming, and more. Download Now Ready to embark on your JavaScript learning journey? Download our app today and take the first step towards becoming a skilled developer. Let’s code, create, and conquer the web together! Start learning JavaScript today and transform your future in tech!

Screenshots

Kadmia4 screens
Learn JavaScript | Learn JS4 screens

Verdict

The call

The clearest difference is update cadence: Learn JavaScript | Learn JS at weekly against Kadmia's every 6 months. Learn JavaScript | Learn JS also leads on iOS requirement (12.0 vs 15.1). On price, ads, in-app purchases and monetization model there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Kadmia ships an update every 6 months, Learn JavaScript | Learn JS weekly. The most recent releases landed on September 17, 2026 and September 19, 2026 respectively.

Scorecard2 real differences · 8 level
Kadmia versus Learn JavaScript | Learn JS: the parameters behind the verdict, then further details
ParameterKadmiaLearn JavaScript | Learn JS
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews—100.0% of reviews
Number of ratings1 — better—
Update frequencyEvery 6 monthsWeekly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.112.0 — better
Further details — not scored
Size31 MB56 MB
Age rating4+4+
DeveloperKadmia LLCAjit Jain

Customer experience

Kadmia

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Learn JavaScript | Learn JS

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Kadmia

No in-app purchases

None

Learn JavaScript | Learn JS

No in-app purchases

Questions

Is Kadmia free?
Kadmia is free to download, with no in-app purchases.
Is Learn JavaScript | Learn JS free?
Learn JavaScript | Learn JS is free to download, with no in-app purchases.
Do Kadmia or Learn JavaScript | Learn JS have ads?
Neither Kadmia nor Learn JavaScript | Learn JS shows ads.
Which is updated more often, Kadmia or Learn JavaScript | Learn JS?
Kadmia ships an update every 6 months, and Learn JavaScript | Learn JS weekly. Most recently, Kadmia was updated on September 17, 2026 and Learn JavaScript | Learn JS on September 19, 2026.

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