# Kotlin Programming Compiler vs JavaScript Compiler

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.

Both are free to download. Kotlin Programming Compiler sells 1 one-off in-app purchase. JavaScript Compiler asks for nothing beyond the download.

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.

## The numbers

| Metric | Kotlin Programming Compiler | JavaScript Compiler |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (7 ratings)](https://appshunter.io/ios/app/kotlin-programming-compiler/id1450611634/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 62.5% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 2 months** | Every 7 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 20 MB | 65 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ketan Appa](https://appshunter.io/developer/576435759) | [Hrishi Suthar](https://appshunter.io/developer/1660005858) |

## What reviewers say

### Kotlin Programming Compiler

[App page](https://appshunter.io/ios/app/kotlin-programming-compiler/id1450611634)

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:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Upgrade | $2.99 | one-time |


### JavaScript Compiler

[App page](https://appshunter.io/ios/app/javascript-compiler/id6747160298)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*