Comparison

Learn JavaScript | Learn JS vs ReactNative Mastery By SubraAI

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

Head to head
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!

About

ReactNative Mastery By SubraAI

Features
Read full description

RN Mastery is a React Native learning app built for developers who want more than basic tutorials. Learn React Native from beginner level to advanced architecture through practical courses, structured learning paths, and real app thinking. RN Mastery focuses on the parts that matter in production: offline-first design, native integrations, debugging, scalability, performance, and shipping real apps. What you can do in RN Mastery: β€’ Explore React Native courses designed for different experience levels β€’ Learn through structured lessons instead of random scattered content β€’ Track lecture progress and continue your learning journey across sessions β€’ Build stronger fundamentals in React Native, JavaScript, TypeScript, and mobile engineering β€’ Move beyond UI tutorials into architecture, production trade-offs, and real-world implementation β€’ Access profile-based learning paths tailored to your current stage β€’ Use offline-friendly course and progress features for smoother learning β€’ Access mobile-first experiences built specifically for developers learning on the go RN Mastery is designed for: β€’ Beginners starting their React Native journey β€’ Developers with 0–2 years of experience who want stronger practical skills β€’ Mid-level engineers who want to improve architecture and performance knowledge β€’ Senior developers aiming to think more clearly about scalable mobile systems Why RN Mastery is different: Most learning resources stop at small demos. RN Mastery is built around real engineering challenges, clear learning paths, and practical production thinking. The goal is not just to teach syntax, but to help you become a stronger React Native developer. Download RN Mastery and start learning React Native with a practical, production-focused approach.

Screenshots

Learn JavaScript | Learn JS4 screens
ReactNative Mastery By SubraAI4 screens

Verdict

The call

The clearest difference is update cadence: Learn JavaScript | Learn JS at weekly against ReactNative Mastery By SubraAI's every 3 weeks. Learn JavaScript | Learn JS also leads on iOS requirement (12.0 vs 15.5). On price, ads, in-app purchases and device support there is nothing between them.

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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

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

UpkeepUpdate frequency

Learn JavaScript | Learn JS ships an update weekly, ReactNative Mastery By SubraAI every 3 weeks. The most recent releases landed on September 19, 2026 and September 27, 2026 respectively.

Scorecard2 real differences Β· 6 level
Learn JavaScript | Learn JS versus ReactNative Mastery By SubraAI: the parameters behind the verdict, then further details
ParameterLearn JavaScript | Learn JSReactNative Mastery By SubraAI
PriceFreeFree
Positive reviews100.0% of reviewsβ€”
Update frequencyWeekly β€” betterEvery 3 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationFreeβ€”
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 β€” better15.5
Further details β€” not scored
Size56 MB120 MB
Age rating4+4+
DeveloperAjit JainSubrata Kumar Das

In-app purchases

None

Learn JavaScript | Learn JS

No in-app purchases

None

ReactNative Mastery By SubraAI

No in-app purchases

Questions

Is Learn JavaScript | Learn JS free?
Learn JavaScript | Learn JS is free to download, with no in-app purchases.
Is ReactNative Mastery By SubraAI free?
ReactNative Mastery By SubraAI is free to download, with no in-app purchases.
Do Learn JavaScript | Learn JS or ReactNative Mastery By SubraAI have ads?
Neither Learn JavaScript | Learn JS nor ReactNative Mastery By SubraAI shows ads.
Which is updated more often, Learn JavaScript | Learn JS or ReactNative Mastery By SubraAI?
Learn JavaScript | Learn JS ships an update weekly, and ReactNative Mastery By SubraAI every 3 weeks. Most recently, Learn JavaScript | Learn JS was updated on September 19, 2026 and ReactNative Mastery By SubraAI on September 27, 2026.

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