# USB vs USB扩展屏

The clearest difference is in-app purchases: USB at none against USB扩展屏's 1. USB also leads on iOS requirement (13.0 vs 17.0). USB扩展屏's advantage is update cadence (daily vs every 5 weeks). On price, ads and device support there is nothing between them.

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

USB ships an update every 5 weeks, USB扩展屏 daily. The most recent releases landed on October 6, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | USB | USB扩展屏 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.0 (29 ratings)](https://appshunter.io/ios/app/usb-view/id1404195213/reviews)** | — |
| Number of ratings | **29** | — |
| Positive reviews | 18.2% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Daily** |
| Monetization | Free | — |
| Size | 8 MB | 0 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [志强 童](https://appshunter.io/developer/1214909933) | [晓满 李](https://appshunter.io/developer/1515867430) |

## What reviewers say

### USB

[App page](https://appshunter.io/ios/app/usb-view/id1404195213)

This application connects to WIFI image transmission equipment, enabling wireless image data transfer between cameras and iOS devices. It allows for real-time, free transmission of visuals from anywhere, anytime.

**Highlights:** WIFI image transmission, Wireless connection to iOS devices, Real-time image data transfer, Anytime, anywhere access, Free wireless transmission

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

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is USB free?

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

### Is USB扩展屏 free?

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

### Do USB or USB扩展屏 have ads?

Neither USB nor USB扩展屏 shows ads.

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

USB ships an update every 5 weeks, and USB扩展屏 daily. Most recently, USB was updated on October 6, 2026 and USB扩展屏 on October 1, 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.*