# Sky Authenticator vs NDI HX Camera

The clearest difference is in-app purchases: Sky Authenticator at none against NDI HX Camera's 4. Sky Authenticator also leads on update cadence (every 2 months vs every 5 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. NDI HX Camera sells 4 in-app purchases, starting at $4.99 per month. Sky Authenticator asks for nothing beyond the download.

Sky Authenticator ships an update every 2 months, NDI HX Camera every 5 months. The most recent releases landed on October 6, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Sky Authenticator | NDI HX Camera |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.4 (507 ratings)](https://appshunter.io/ios/app/ndi-hx-camera-stream-capture/id6502563620/reviews)** |
| Number of ratings | — | **507** |
| Positive reviews | — | 10.6% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 5 months |
| Monetization | — | Free with in-app purchases |
| Size | 25 MB | 8 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sky World Limited](https://appshunter.io/developer/1503688557) | [新雨 李](https://appshunter.io/developer/1559932632) |

## What reviewers say

### Sky Authenticator

[App page](https://appshunter.io/ios/app/sky-authenticator/id6480073025)

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

**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 Sky Authenticator free?

Sky Authenticator is free to download, with no in-app purchases.

### Is NDI HX Camera free?

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

### Do Sky Authenticator or NDI HX Camera have ads?

Neither Sky Authenticator nor NDI HX Camera shows ads.

### Which is updated more often, Sky Authenticator or NDI HX Camera?

Sky Authenticator ships an update every 2 months, and NDI HX Camera every 5 months. Most recently, Sky Authenticator was updated on October 6, 2026 and NDI HX Camera on October 7, 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.*