# NetSim vs Learn React.js

The clearest difference is price: NetSim at Free against Learn React.js's $1.99. NetSim also leads on iOS requirement (11.0 vs 13.0). Learn React.js's advantage is update cadence (every 15 months vs every 41 months) and device support (3 vs 1). On ads and in-app purchases there is nothing between them.

NetSim is free to download; Learn React.js costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

NetSim ships an update every 41 months, Learn React.js every 15 months. The most recent releases landed on October 6, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | NetSim | Learn React.js |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | — | **[5.0 (7 ratings)](https://appshunter.io/ios/app/learn-reactjs-build-apps/id1561935031/reviews)** |
| Number of ratings | — | **7** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 41 months | **Every 15 months** |
| Monetization | — | Paid |
| Size | 10 MB | 64 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [California State University, Northridge](https://appshunter.io/developer/677332864) | [Muhammad Mubeen](https://appshunter.io/developer/1553722821) |

## What reviewers say

### NetSim

[App page](https://appshunter.io/ios/app/netsim/id1238304585)

**Features:** macOS Compatibility

**In-app purchases:** none


### Learn React.js

[App page](https://appshunter.io/ios/app/learn-reactjs-build-apps/id1561935031)

Master modern web development with a comprehensive guide to React.js. Learn HTML, CSS, JavaScript, TypeScript, and advanced frameworks like Next.js, Gatsby, and Remix. Includes interactive quizzes and progress tracking.

**Highlights:** HTML, CSS, JavaScript, TypeScript fundamentals, Core React.js concepts (Components, Hooks), Advanced frameworks (Next.js, Gatsby, Remix), State management (Redux), UI design (Material UI), Interactive quizzes, Progress tracking

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

**In-app purchases:** none


## Frequently asked questions

### Is NetSim free?

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

### Is Learn React.js free?

Learn React.js costs $1.99, with no in-app purchases.

### Do NetSim or Learn React.js have ads?

Neither NetSim nor Learn React.js shows ads.

### Which is updated more often, NetSim or Learn React.js?

NetSim ships an update every 41 months, and Learn React.js every 15 months. Most recently, NetSim was updated on October 6, 2026 and Learn React.js on October 9, 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.*