Comparison

Kotlin Programming Compiler vs JavaScript Compiler

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

Head to head
About

Kotlin Programming Compiler

Write and execute Kotlin code directly on your mobile device. This app is designed for learning and testing code snippets with features like syntax highlighting and a custom keyboard. It allows you to compile, run, and share your Kotlin files.

Highlights
  • Compile and run Kotlin programs
  • View program output and errors
  • Custom keyboard for easy input
  • Advanced source code editor
  • Syntax highlighting and line numbers
  • Open, save, import, and share files
Features
Read full description

Write Kotlin code directly on your iPhone, iPad and iPod Touch! This app is ideal for learning and testing code snippets! Kotlin is a cross-platform, statically typed, general-purpose programming language with type inference. Kotlin is designed to interoperate fully with Java, and the JVM version of its standard library depends on the Java Class Library, but type inference allows its syntax to be more concise. Kotlin mainly targets the JVM, but also compiles to JavaScript or native code (via LLVM). Kotlin is sponsored by JetBrains and Google through the Kotlin Foundation. Features: - Compile and run your program - View program output or detailed error - Custom keyboard for easy input of frequently used characters - Optimized for connecting with external physical/bluetooth keyboard - Advanced source code editor with syntax highlighting, bracket completion and line numbers - Open, save, import and share Kotlin files. Limitations: - Internet connection is required for compilation - Maximum program running time is 20s - One file can be run at a time - Some file system, network and graphics functions may be limited - This is a batch compiler; interactive programs are not supported. For example, if your program provides an input prompt, enter the input in the Input tab prior to compilation.

About

JavaScript Compiler

This app offers a comprehensive coding environment for JavaScript development. It features syntax highlighting, efficient code layout, and tools for easy code management and scanning. Stay updated with tutorials and news to enhance your programming skills.

Highlights
  • Syntax highlighting
  • Fast code layout with symbols
  • Customizable tools layout (copy, paste, undo)
  • Effortless cursor navigation
  • Scan code from camera
  • Integrated tutorials and news
  • Bookmarks and project management
Features
Read full description

Welcome to the ultimate JavaScript Compiler app, designed to provide an intuitive and powerful coding experience. The app is equipped with features that cater to both beginners and seasoned developers, ensuring a seamless coding journey. Key Features: Syntax Highlighting: Enjoy a vibrant and readable code editor with color-coded syntax highlighting, making it easy to distinguish between different parts of your code. Fast Code Layout: Our fast code layout includes frequently used symbols, allowing you to code more efficiently and with fewer keystrokes. Tools Layout: Access essential shortcuts such as copy, paste, undo, redo, share, and more, all from a convenient tools layout. Customize your own shortcuts to match your workflow and enhance productivity. Navigation Layout: Move your cursor effortlessly with our navigation layout, designed to make code navigation smooth and intuitive. Scan Code Feature: Quickly scan and import code snippets using your device's camera. Perfect for grabbing code from textbooks, whiteboards, or printed documents. Tutorials and News Section: Stay updated with the latest in JavaScript development through our integrated tutorials and news section. Learn new techniques, best practices, and keep up with industry trends. Bookmarks and Project Management: Easily bookmark important code snippets and projects for quick access. Manage your projects efficiently with our built-in project organization tools. Elevate your coding experience with the JavaScript Compiler app, where every feature is crafted to support your development needs. Whether you're writing your first line of code or debugging complex projects, the app is your perfect coding companion. Developed by Anvaysoft Programmer- Hrishi Suthar Made with love in India JavaScript is a registered trademark of Oracle Corporation, and Anvaysoft uses the term 'JavaScript Compiler' to indicate that the app compiles JavaScript code. Anvaysoft does not claim ownership of the JavaScript trademark.

Screenshots

Kotlin Programming Compiler4 screens
JavaScript Compiler4 screens

Verdict

The call

The clearest difference is review sentiment: JavaScript Compiler at 100% against Kotlin Programming Compiler's 63%. JavaScript Compiler also leads on in-app purchases (none vs 1) and ads (none vs shown). Kotlin Programming Compiler's advantage is update cadence (every 2 months vs every 7 months). On price, device support and iOS requirement 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. Kotlin Programming Compiler sells 1 one-off in-app purchase. JavaScript Compiler asks for nothing beyond the download.

UpkeepUpdate frequency

Kotlin Programming Compiler ships an update every 2 months, JavaScript Compiler every 7 months. The most recent releases landed on September 25, 2026 and October 3, 2026 respectively.

Scorecard5 real differences · 5 level
Kotlin Programming Compiler versus JavaScript Compiler: the parameters behind the verdict, then further details
ParameterKotlin Programming CompilerJavaScript Compiler
PriceFreeFree
Rating4.6 (7 ratings) — better—
Positive reviews62.5% of reviews100.0% of reviews — better
Number of ratings7 — better—
Update frequencyEvery 2 months — betterEvery 7 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better13.0
Further details — not scored
Size20 MB65 MB
Age rating4+4+
DeveloperKetan AppaHrishi Suthar

Customer experience

Kotlin Programming Compiler

All ratings7 ratings
Positive85.7%
Neutral14.3%
Negative0.0%
Written reviews8 reviews
Positive62.5%
Neutral12.5%
Negative25.0%

JavaScript Compiler

Written reviews29 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

Kotlin Programming Compiler

One-time1
  • Upgrade$2.99
None

JavaScript Compiler

No in-app purchases

Questions

Is Kotlin Programming Compiler free?
Kotlin Programming Compiler is free to download, with in-app purchases available.
Is JavaScript Compiler free?
JavaScript Compiler is free to download, with no in-app purchases.
Do Kotlin Programming Compiler or JavaScript Compiler have ads?
Kotlin Programming Compiler shows ads; JavaScript Compiler does not.
Which is updated more often, Kotlin Programming Compiler or JavaScript Compiler?
Kotlin Programming Compiler ships an update every 2 months, and JavaScript Compiler every 7 months. Most recently, Kotlin Programming Compiler was updated on September 25, 2026 and JavaScript Compiler on October 3, 2026.

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