# NDI Test Patterns vs USB Camera to NDI

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.

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.

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.

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.

## The numbers

| Metric | NDI Test Patterns | USB Camera to NDI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/ndi-test-patterns/id1571995248/reviews)** | [3.9 (98 ratings)](https://appshunter.io/ios/app/usb-camera-to-ndi/id6476429895/reviews) |
| Number of ratings | 2 | **98** |
| Positive reviews | **100.0% of reviews** | 28.6% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Monthly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 10 MB | 41 MB |
| Requires iOS | **14.4** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [NewTek](https://appshunter.io/developer/573312611) | [TopDirector Corporation](https://appshunter.io/developer/1581209934) |

## What reviewers say

### NDI Test Patterns

[App page](https://appshunter.io/ios/app/ndi-test-patterns/id1571995248)

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:** Vision Pro support

**In-app purchases:** none


### USB Camera to NDI

[App page](https://appshunter.io/ios/app/usb-camera-to-ndi/id6476429895)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |
| Enable NDI Sending | $4.99 | one-time |
| Enable Recording and Snapshot | $9.99 | one-time |
| HDMI, ScreenMirroring, AirPlay | $9.99 | one-time |


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*