# RTA Pro vs NDI HX Camera

The clearest difference is price: NDI HX Camera at Free against RTA Pro's $5.99. NDI HX Camera also leads on ratings volume (529 vs 2) and iOS requirement (14.0 vs 17.6). RTA Pro's advantage is review sentiment (50% vs 11%) and in-app purchases (none vs 4). On rating, ads and device support there is nothing between them.

NDI HX Camera is free to download; RTA Pro costs $5.99 up front. NDI HX Camera sells 4 in-app purchases, starting at $4.99 per month. RTA Pro asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.5 for RTA Pro against 4.4 for NDI HX Camera. That said, the two scores are not equally well evidenced: NDI HX Camera has 529 ratings behind it against 2, so its average is the more settled of the two. Written reviews are what separate them: 50% of RTA Pro's written reviews are positive against 11% of NDI HX Camera's.

RTA Pro ships an update every 3 months, NDI HX Camera every 5 months. The most recent releases landed on October 26, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | RTA Pro | NDI HX Camera |
| --- | --- | --- |
| Price | $5.99 | **Free** |
| Rating | **[4.5 (2 ratings)](https://appshunter.io/ios/app/rta-pro/id703753970/reviews)** | [4.4 (529 ratings)](https://appshunter.io/ios/app/ndi-hx-camera-stream-capture/id6502563620/reviews) |
| Number of ratings | 2 | **529** |
| Positive reviews | **50.0% of reviews** | 10.6% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 5 months |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 12 MB | 8 MB |
| Requires iOS | 17.6 | **14.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Matthias Schorer](https://appshunter.io/developer/290579382) | [新雨 李](https://appshunter.io/developer/1559932632) |

## What reviewers say

### RTA Pro

[App page](https://appshunter.io/ios/app/rta-pro/id703753970)

Transform your iOS device into a professional audio analysis tool. Analyze ambient noise frequencies, pinpoint room resonance, and set up sound systems for events. Features include custom calibration, multiple display modes, and adjustable speed settings.

**Highlights:** Real-time audio spectrum analysis, Frequency range 32Hz to 16kHz, Linear, dB(A), and dB(C) weightings, 1/3 Octave Bands, Octave Bands, and FFT display, Adjustable speed settings, Custom calibration options

**In-app purchases:** none


### NDI HX Camera

[App page](https://appshunter.io/ios/app/ndi-hx-camera-stream-capture/id6502563620)

Transform your smartphone into an HD IP camera for professional video production. Stream high-quality video in real-time to OBS, NDI systems, and other compatible software. Ideal for content creators, journalists, and live event broadcasters seeking a portable and integrated solution.

**Highlights:** Real-time NDI streaming, HD IP camera functionality, OBS and NDI compatibility, High-definition video capture, User-friendly interface, Efficient local network use

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited access | $4.99 | per month |
| Unlimited access | $9.99 | per 3 months |
| Unlimited access | $14.99 | per 6 months |
| Unlimited access | $19.99 | per year |

**What reviewers like**

- 👍 Clean and intuitive user interface
- ✅ Easy to use and straightforward
- 🎥 Works well when functioning properly
- 📱 Useful for remote camera capabilities

**What reviewers complain about**

- 💰 Aggressive paywall - most features locked behind subscription
- 🚫 App doesn't work or sends black screen/no video signal
- ⏱️ Frequent crashes and freezes after 5-20 minutes
- 🔧 Settings and configuration options inaccessible without payment
- ❌ Incompatible with NDI tools, OBS, vMix, and other standard software

**Reported bugs**

- App times out or freezes after 5-20 minutes of use
- Black screen or no video output despite connection
- Settings gear icon doesn't respond to taps
- App crashes and locks up device requiring restart
- Audio not working on iPhone 15 Pro

**Requested features**

- FPS and codec customization options
- Resolution and quality control settings
- Audio transmission support
- Remote zoom control via device remote
- Screen mirroring capability (not just camera)


## Frequently asked questions

### Is RTA Pro free?

RTA Pro costs $5.99, with no in-app purchases.

### Is NDI HX Camera free?

NDI HX Camera is free to download, with in-app purchases available.

### Which has better reviews, RTA Pro or NDI HX Camera?

RTA Pro is rated higher. RTA Pro averages 4.5 out of 5 from 2 ratings, while NDI HX Camera averages 4.4 from 529 ratings.

### Do RTA Pro or NDI HX Camera have ads?

Neither RTA Pro nor NDI HX Camera shows ads.

### Which is updated more often, RTA Pro or NDI HX Camera?

RTA Pro ships an update every 3 months, and NDI HX Camera every 5 months. Most recently, RTA Pro was updated on October 26, 2026 and NDI HX Camera on October 27, 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.*