# BDT GSU vs ZIGCAM

The clearest difference is in-app purchases: BDT GSU at none against ZIGCAM's 1. ZIGCAM's advantage is update cadence (fortnightly vs every 6 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. ZIGCAM sells 1 one-off in-app purchase. BDT GSU asks for nothing beyond the download.

BDT GSU ships an update every 6 months, ZIGCAM fortnightly. The most recent releases landed on October 13, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | BDT GSU | ZIGCAM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/zigcam/id1570755292/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Fortnightly** |
| Monetization | — | Free with in-app purchases |
| Size | 12 MB | 3 MB |
| Requires iOS | **13.0** | 14.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [com.felizcube.bt-engine-viewer](https://appshunter.io/developer/1550938203) | [Tech Director's Association](https://appshunter.io/developer/1570755294) |

## What reviewers say

### BDT GSU

[App page](https://appshunter.io/ios/app/bdt-gsu/id1550938201)

**Features:** macOS Compatibility

**In-app purchases:** none


### ZIGCAM

[App page](https://appshunter.io/ios/app/zigcam/id1570755292)

This app transforms your iPad or iPhone into a device that transmits real-time depth and camera data using NDI. It integrates seamlessly with development environments like Unreal Engine and broadcast applications such as OBS, allowing you to utilize LiDAR depth data and ARKit information in your preferred PC applications.

**Highlights:** Real-time NDI data transmission, Emulates iPad/iPhone as data source, Utilizes LiDAR depth data, Supports ARKit data, Integrates with TouchDesigner and Unreal Engine, Secure and simple operation

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Release All Features | $7.99 | one-time |


## Frequently asked questions

### Is BDT GSU free?

BDT GSU is free to download, with no in-app purchases.

### Is ZIGCAM free?

ZIGCAM is free to download, with in-app purchases available.

### Do BDT GSU or ZIGCAM have ads?

Neither BDT GSU nor ZIGCAM shows ads.

### Which is updated more often, BDT GSU or ZIGCAM?

BDT GSU ships an update every 6 months, and ZIGCAM fortnightly. Most recently, BDT GSU was updated on October 13, 2026 and ZIGCAM 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.*