# Learn JavaScript | Learn JS vs ReactNative Mastery By SubraAI

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.

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

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.

## The numbers

| Metric | Learn JavaScript | Learn JS | ReactNative Mastery By SubraAI |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 3 weeks |
| Monetization | Free | — |
| Size | 56 MB | 120 MB |
| Requires iOS | **12.0** | 15.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ajit Jain](https://appshunter.io/developer/1737346341) | [Subrata Kumar Das](https://appshunter.io/developer/1802433517) |

## What reviewers say

### Learn JavaScript | Learn JS

[App page](https://appshunter.io/ios/app/learn-javascript-learn-js/id6738418403)

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:** macOS Compatibility

**In-app purchases:** none


### ReactNative Mastery By SubraAI

[App page](https://appshunter.io/ios/app/reactnative-mastery-by-subraai/id6770295508)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


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