# USB扩展屏 vs javaScriptCoding

The clearest difference is in-app purchases: javaScriptCoding at none against USB扩展屏's 1. USB扩展屏's advantage is update cadence (daily vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. USB扩展屏 sells 1 one-off in-app purchase. javaScriptCoding asks for nothing beyond the download.

USB扩展屏 ships an update daily, javaScriptCoding every 3 months. The most recent releases landed on October 1, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | USB扩展屏 | javaScriptCoding |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Daily** | Every 3 months |
| Size | 0 MB | 9 MB |
| Requires iOS | **17.0** | 18.2 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [晓满 李](https://appshunter.io/developer/1515867430) | [梦雨 朱](https://appshunter.io/developer/1854783354) |

## What reviewers say

### USB扩展屏

[App page](https://appshunter.io/ios/app/usb/id6502822709)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 完整版 | $0.99 | one-time |


### javaScriptCoding

[App page](https://appshunter.io/ios/app/javascriptcoding/id6756481453)

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

**In-app purchases:** none


## Frequently asked questions

### Is USB扩展屏 free?

USB扩展屏 is free to download, with in-app purchases available.

### Is javaScriptCoding free?

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

### Do USB扩展屏 or javaScriptCoding have ads?

Neither USB扩展屏 nor javaScriptCoding shows ads.

### Which is updated more often, USB扩展屏 or javaScriptCoding?

USB扩展屏 ships an update daily, and javaScriptCoding every 3 months. Most recently, USB扩展屏 was updated on October 1, 2026 and javaScriptCoding on October 7, 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.*