S vs USB Camera pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
S
This app allows you to view live images from a USB camera connected to a WiFi station wirelessly. You can capture, record, freeze, and annotate the video feed, and even switch to your iOS device's camera.
- Wireless USB camera transfer
- Live image preview
- Capture and record video
- Freeze and draw on video
- Switch camera resolutions
- Adjust image quality (brightness)
- Use iOS device camera
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S-Viewer is an APP for WiFi station that is USB camera transfer to wireless. It is available for iOS series devices. It can pre-view the live image from WiFi station with USB camera that has MJPEG video stream output and capture, record, freeze, drawing, mark the symbols or the words, switch camera resolutions, set image quality as like brightness in this APP. The APP also can switch to iOS mobile device camera.
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 ads: S at none against USB Camera pro's shown. S also leads on monetization model (free vs ad-supported) and iOS requirement (6.0 vs 17.0). USB Camera pro's advantage is rating (3.2 vs 3.0) and ratings volume (13 vs 2). 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 3.0. That said, the two scores are not equally well evidenced: USB Camera pro has 13 ratings behind it against 2, so its average is the more settled of the two.
S ships an update monthly, USB Camera pro every 2 months. The most recent releases landed on September 19, 2026 and October 5, 2026 respectively.
| Parameter | S | USB Camera pro |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (2 ratings) | 3.2 (13 ratings) — better |
| Positive reviews | — | 46.4% of reviews |
| Number of ratings | 2 | 13 — better |
| Update frequency | Monthly — better | Every 2 months |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 6.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 12 MB | 35 MB |
| Age rating | 4+ | 4+ |
| Developer | TSUNG JUNG HU | 长沙春觉信息科技有限公司 |
Customer experience
S
USB Camera pro
In-app purchases
S
No in-app purchases
USB Camera pro
No in-app purchases
