Comparison

NDI Test Patterns vs USB Camera to NDI

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

NDI Test Patterns

Transform your mobile device into a professional NDI® test pattern generator. Send video and audio test signals, or create custom slideshows using your own images. Ideal for live video production workflows.

Highlights
  • Mobile NDI test pattern source
  • Audio test tone generation
  • Custom NDI slideshows
  • High-resolution photo support
  • Automatic NDI device recognition
  • iPhone and iPad compatible
Features
Read full description

The official NDI® Test Patterns application. Turn your phone or tablet into a test pattern source for any NDI® receiver. The app also supports the sending of an audio test tone at different standard volumes which is useful when checking receiver audio levels. Finally enjoy the ability to add pictures from your photo library enabling custom NDI® slide shows. NDI® (Network Device Interface) is a low latency IP video protocol developed especially for professional live video production, and is supported by an extensive list of broadcast systems from many manufacturers. NDI® HX Camera turns your iOS imaging devices into high-quality wireless a/v sources for NDI-enabled broadcast systems and software on the same network. Your device’s output is automatically recognized by NDI-enabled* video systems, ready to be mixed into live shows or even for use as a web camera when used in conjunction with NDI® Tools (ndi.tv/tools). * Note: Requires support for NDI v.4 or better. Basic Features • Easy to use • iPhone and iPad compatibility • Access your photo library to stream user photos over NDI • Multiple standard volume choices for the audio test tone Advanced Features • Support for high resolution photos • Automatic NDI device recognition Support • Knowledge Base Articles https://support.newtek.com/hc/en-us/search?utf8=%E2%9C%93&query=iphone&commit=Search • NDI Forums https://forums.newtek.com/forumdisplay.php/360-NDI-%28Network-Device-Interface%29

About

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.

Highlights
  • 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
Features
Read full description

- 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

NDI Test Patterns3 screens
USB Camera to NDI1 screens

Verdict

The call

The clearest difference is review sentiment: NDI Test Patterns at 100% against USB Camera to NDI's 29%. NDI Test Patterns also leads on rating (5.0 vs 3.9) and in-app purchases (none vs 4). USB Camera to NDI's advantage is ratings volume (98 vs 2) and update cadence (monthly vs every 4 months). On price, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. USB Camera to NDI sells 4 one-off in-app purchases. NDI Test Patterns asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

NDI Test Patterns holds the better App Store score, 5.0 against 3.9. That said, the two scores are not equally well evidenced: USB Camera to NDI has 98 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 100% of NDI Test Patterns's written reviews are positive against 29% of USB Camera to NDI's.

UpkeepUpdate frequency

NDI Test Patterns ships an update every 4 months, USB Camera to NDI monthly. The most recent releases landed on August 13, 2026 and September 23, 2026 respectively.

Scorecard7 real differences · 3 level
NDI Test Patterns versus USB Camera to NDI: the parameters behind the verdict, then further details
ParameterNDI Test PatternsUSB Camera to NDI
PriceFreeFree
Rating5.0 (2 ratings) — better3.9 (98 ratings)
Positive reviews100.0% of reviews — better28.6% of reviews
Number of ratings298 — better
Update frequencyEvery 4 monthsMonthly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS14.4 — better17.6
Further details — not scored
Size10 MB41 MB
Age rating4+4+
DeveloperNewTekTopDirector Corporation

Customer experience

NDI Test Patterns

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

USB Camera to NDI

All ratings98 ratings
Positive71.4%
Neutral4.1%
Negative24.5%
Written reviews7 reviews
Positive28.6%
Neutral0.0%
Negative71.4%

In-app purchases

None

NDI Test Patterns

No in-app purchases

4 purchases

USB Camera to NDI

One-time4
  • Remove Ads$0.99
  • Enable NDI Sending$4.99
  • Enable Recording and Snapshot$9.99
Show 1 more
  • HDMI, ScreenMirroring, AirPlay$9.99

Questions

Is NDI Test Patterns free?
NDI Test Patterns is free to download, with no in-app purchases.
Is USB Camera to NDI free?
USB Camera to NDI is free to download, with in-app purchases available.
Which has better reviews, NDI Test Patterns or USB Camera to NDI?
NDI Test Patterns is rated higher. NDI Test Patterns averages 5.0 out of 5 from 2 ratings, while USB Camera to NDI averages 3.9 from 98 ratings.
Do NDI Test Patterns or USB Camera to NDI have ads?
Neither NDI Test Patterns nor USB Camera to NDI shows ads.
Which is updated more often, NDI Test Patterns or USB Camera to NDI?
NDI Test Patterns ships an update every 4 months, and USB Camera to NDI monthly. Most recently, NDI Test Patterns was updated on August 13, 2026 and USB Camera to NDI on September 23, 2026.

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