# JavaScript Compiler vs CodeStack AI

The clearest difference is in-app purchases: JavaScript Compiler at none against CodeStack AI's 2. CodeStack AI's advantage is update cadence (every 3 weeks vs every 4 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. CodeStack AI sells 2 in-app purchases, starting at $2.99 per month. JavaScript Compiler asks for nothing beyond the download.

JavaScript Compiler ships an update every 4 months, CodeStack AI every 3 weeks. The most recent releases landed on September 16, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | JavaScript Compiler | CodeStack AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.7 (3 ratings)](https://appshunter.io/ios/app/javascript-compiler-run-js/id1546362047/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 28 MB | 29 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [OnePercent](https://appshunter.io/developer/1536020418) | [CODE NINJA COACHING LIMITED](https://appshunter.io/developer/1687825183) |

## What reviewers say

### JavaScript Compiler

[App page](https://appshunter.io/ios/app/javascript-compiler-run-js/id1546362047)

This app provides a mobile environment to compile and run JavaScript programs. It features a code editor with syntax highlighting, exercise questions, and pre-written DSA programs to aid learning. It's completely free and ad-free for all users.

**Highlights:** Compile and run JavaScript programs, Code editor with syntax highlighting, Exercise questions for skill improvement, Includes general DSA programs with code, Programming and computer science fun facts

**Features:** macOS Compatibility

**In-app purchases:** none


### CodeStack AI

[App page](https://appshunter.io/ios/app/codestack-ai-learn-to-code/id6451455856)

**Features:** Family Sharing

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly Access | $2.99 | per month |
| Pro Yearly Access | $19.99 | per year |


## Frequently asked questions

### Is JavaScript Compiler free?

JavaScript Compiler is free to download, with no in-app purchases.

### Is CodeStack AI free?

CodeStack AI is free to download, with in-app purchases available.

### Do JavaScript Compiler or CodeStack AI have ads?

Neither JavaScript Compiler nor CodeStack AI shows ads.

### Which is updated more often, JavaScript Compiler or CodeStack AI?

JavaScript Compiler ships an update every 4 months, and CodeStack AI every 3 weeks. Most recently, JavaScript Compiler was updated on September 16, 2026 and CodeStack AI on September 15, 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.*