# EV扩展屏 vs USB Camera pro

The clearest difference is review sentiment: USB Camera pro at 46% against EV扩展屏's 0%. USB Camera pro also leads on rating (3.2 vs 1.0) and ratings volume (13 vs 1). EV扩展屏's advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price, update cadence, 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.

USB Camera pro holds the better App Store score, 3.2 against 1.0. That said, the two scores are not equally well evidenced: USB Camera pro has 13 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 0% of EV扩展屏's written reviews are positive against 46% of USB Camera pro's.

EV扩展屏 ships an update every 3 months, USB Camera pro every 2 months. The most recent releases landed on September 16, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | EV扩展屏 | USB Camera pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/ev/id6443439614/reviews) | **[3.2 (13 ratings)](https://appshunter.io/ios/app/usb-camera-pro-capture-driver/id6450260394/reviews)** |
| Number of ratings | 1 | **13** |
| Positive reviews | 0.0% of reviews | **46.4% of reviews** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | **Free** | Ad-supported |
| Size | 9 MB | 35 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [振宇 胡](https://appshunter.io/developer/1190222874) | [长沙春觉信息科技有限公司](https://appshunter.io/developer/1692530882) |

## What reviewers say

### EV扩展屏

[App page](https://appshunter.io/ios/app/ev/id6443439614)

This utility app allows you to use your mobile device as an external display for your computer. It supports both extended and mirrored screen modes, and can also sync your computer's audio to your phone or tablet.

**Highlights:** WiFi connection, Dual screen collaboration, Extended display mode, Mirrored display mode, Computer audio sync

**Features:** macOS Compatibility

**In-app purchases:** none


### USB Camera pro

[App page](https://appshunter.io/ios/app/usb-camera-pro-capture-driver/id6450260394)

This app enables iPads to function as external displays for USB cameras and video capture cards. It offers plug-and-play connectivity without drivers, supporting various devices and providing features like recording, screenshots, and image enhancement.

**Highlights:** Connect USB cameras and capture cards to iPad, External display for video capture, Plug-and-play, no driver needed, Synchronous recording of audiovisual picture, One-click screenshot, Super resolution picture quality enhancement

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

**In-app purchases:** none


## Frequently asked questions

### Is EV扩展屏 free?

EV扩展屏 is free to download, with no in-app purchases.

### Is USB Camera pro free?

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

### Which has better reviews, EV扩展屏 or USB Camera pro?

USB Camera pro is rated higher. EV扩展屏 averages 1.0 out of 5 from 1 ratings, while USB Camera pro averages 3.2 from 13 ratings.

### Do EV扩展屏 or USB Camera pro have ads?

USB Camera pro shows ads; EV扩展屏 does not.

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

EV扩展屏 ships an update every 3 months, and USB Camera pro every 2 months. Most recently, EV扩展屏 was updated on September 16, 2026 and USB Camera pro 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.*