CamX vs USB Camera to NDI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CamX
Transform your iPad into a portable monitor or capture device. Streamline content creation and gaming with high-quality recording and customizable settings. Ideal for on-the-go productivity and entertainment.
- Portable display for iPad
- High-quality video recording
- Gaming mode with picture settings
- Videography mode with histograms
- User-friendly interface
- Internal capture for other devices
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CamX turns your iPhone into a professional camera and your iPad into a portable capture monitor. On iPhone, CamX delivers full manual camera controls, real-time video effects, and professional monitoring tools. On iPad, simply connect a USB capture card to transform it into a portable display for gaming, streaming, or filmmaking. One powerful tool for creators, gamers, and filmmakers. 【Real-Time Video Effects (20+)】 • Gaming-optimized effects Recreate classic arcade displays with CRT scanlines, screen curvature, shadow masks, retro pixel styles, and LCD grids • Analog signal effects VHS, NTSC composite, and dithering • AI upscaling Enhance low-resolution sources with sharper visuals • Creative effects Night vision, film grain, and chromatic aberration • VFX Recording Bake effects directly into recorded videos and photos • VFX Profiles Save and switch between custom presets instantly 【Professional Monitoring】 • GPU-accelerated histogram RGB, Luma, and RGB Parade modes • Video scopes Waveform, RGB waveform, and vectorscope • Focus and exposure tools Focus peaking, zebra stripes, and false color • LUT preview Real-time preview with custom .cube LUT import • Picture profiles Adjust contrast, saturation, and color temperature 【Advanced Camera Controls】 • Manual exposure, white balance, and lens adjustments • High-quality recording Custom resolution, frame rate, and codec settings • Composition guides Aspect ratio masks (2.39:1, 2:1, 1.85:1, 4:3, 1:1, 9:16) • Guide colors and center marker 【Two Display Modes】 Gaming Mode Minimal overlay with low latency, optimized for capture cards. Videography Mode Full monitoring tools including histogram, scopes, and picture adjustments. 【More Features】 • AirPlay and external display support Clean feed mode with HDMI / USB-C output • Media browser Manage photos and videos directly in the app • Screen lock Prevent accidental touches during recording 【CamX Pro】 Unlock the full studio experience with VFX effects, advanced monitoring tools, custom skins, and more. Everything you already love about CamX remains free. 【Device Compatibility】 • Built-in camera capture works on all supported devices, including iPhone • UVC capture is supported on iPad models with USB-C ports Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
USB Camera to NDI
This app allows you to monitor and convert UVC cameras to NDI streams in real-time. It supports various NDI formats, offers simultaneous recording to Photos, and can extend camera capabilities using HDMI adapters.
- Monitor UVC cameras for free
- Switch between multiple UVC cameras
- Real-time NDI conversion
- Supports FULL NDI, NDI HX H.264, NDI HX HEVC
- Record to Photos simultaneously
- NDI tally status indicator
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- Monitoring any UVC camera for free - Switch in multiple UVC cameras - Audio UV meters included - Record to Photos simultaneously - Converts UVC camera to NDI in real-time, supports FULL NDI, NDI HX H.264, NDI HX HEVC - NDI tally status indicator - Use HDMI -> USB adapter to extend more traditional cameras, no longer need an expensive HDMI-NDI converter any more - Use a USB-C adapter with HDMI output for external full-screen monitoring - Use Apple TV, Google TV Stick or Amazon Fire TV Stick for wireless AirPlay monitoring
Screenshots
Verdict
The clearest difference is review sentiment: CamX at 68% against USB Camera to NDI's 25%. CamX also leads on rating (4.4 vs 3.9) and monetization model (free vs free with in-app purchases). On price, ratings volume, update cadence and ads 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. CamX sells 4 in-app purchases, starting at $2.99 per year and USB Camera to NDI sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
CamX holds the better App Store score, 4.4 against 3.9. Both are backed by a comparable volume of ratings — 296 and 102 respectively. Written reviews point the same way: 68% of CamX's written reviews are positive against 25% of USB Camera to NDI's.
CamX ships an update every 3 weeks, USB Camera to NDI every 5 weeks. The most recent releases landed on November 7, 2026 and October 30, 2026 respectively.
| Parameter | CamX | USB Camera to NDI |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (296 ratings) — better | 3.9 (102 ratings) |
| Positive reviews | 68.2% of reviews — better | 25.0% of reviews |
| Number of ratings | 296 — better | 102 |
| Update frequency | Every 3 weeks — better | Every 5 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 19 MB | 41 MB |
| Age rating | 4+ | 4+ |
| Developer | Touchbits Inc. | TopDirector Corporation |
Customer experience
CamX
USB Camera to NDI
In-app purchases
CamX
- CamX Pro$2.991 Year
- Small Tip$1.99
- Nice Tip$4.99
- Big Tip$9.99
USB Camera to NDI
- Remove Ads$0.99
- Enable NDI Sending$4.99
- Enable Recording and Snapshot$9.99
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- HDMI, ScreenMirroring, AirPlay$9.99
Questions
Is CamX free?
Is USB Camera to NDI free?
Which has better reviews, CamX or USB Camera to NDI?
Do CamX or USB Camera to NDI have ads?
Which is updated more often, CamX or USB Camera to NDI?
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