EV扩展屏 vs USB Camera pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
EV扩展屏
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.
- WiFi connection
- Dual screen collaboration
- Extended display mode
- Mirrored display mode
- Computer audio sync
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主要功能 WiFi连接：支持局域网一键直连 双屏协作：支持扩展屏或镜像屏模式 电脑声音同步：手机/平板可当电脑外接音箱
USB Camera pro
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.
- 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
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Use the latest iOS17 feature "Support external cameras in your iPadOS app" to implement iPad as additional output devices for video display. USB Camera Pro is an App that supports USB camera, USB video capture card and other USB devices to connect to iPad tablet through OTG, and drives iPad tablet to display audiovisual images. This App software is plug-and-play, no driver required, and supports a variety of USB cameras, USB video capture cards, and computer TV and other devices. The latest version also supports synchronous recording of the displayed audiovisual picture, one-click screenshot, performance detection, screen adjustment, super resolution picture quality enhancement, color adjustment, screen image reversal and other features. Note: Due to hardware reasons, this App is not currently supported for iPhone.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | EV扩展屏 | USB Camera pro |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) | 3.2 (13 ratings) — better |
| Positive reviews | 0.0% of reviews | 46.4% of reviews — better |
| Number of ratings | 1 | 13 — better |
| Update frequency | Every 3 months | Every 2 months — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 9 MB | 35 MB |
| Age rating | 4+ | 4+ |
| Developer | 振宇 胡 | 长沙春觉信息科技有限公司 |
Customer experience
EV扩展屏
USB Camera pro
In-app purchases
EV扩展屏
No in-app purchases
USB Camera pro
No in-app purchases
