# iDepth NDI vs 闻道HN

The clearest difference is price: 闻道HN at Free against iDepth NDI's $1.99. iDepth NDI's advantage is chart position (#176 vs unranked) and iOS requirement (13.0 vs 18.6). On update cadence, ads, in-app purchases and device support there is nothing between them.

闻道HN is free to download; iDepth NDI costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

iDepth NDI ships an update every 9 months, 闻道HN every 5 months. The most recent releases landed on November 8, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | iDepth NDI | 闻道HN |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 5 months** |
| Monetization | Paid | — |
| Best chart rank | **#176** | — |
| Size | 67 MB | 5 MB |
| Requires iOS | **13.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Gwangyu Lee](https://appshunter.io/developer/1683904838) | [永林 陈](https://appshunter.io/developer/1849547697) |

## What reviewers say

### iDepth NDI

[App page](https://appshunter.io/ios/app/idepth-ndi/id6553999598)

**Currently charting:** #176 Top Paid · Developer Tools (US App Store)

This app captures depth data using a LiDAR sensor and streams it in real-time via NDI. It's designed for media artists and computer musicians to control multimedia content with depth information.

**Highlights:** LiDAR depth scanning, Real-time NDI streaming, Color and depth image output, Multimedia content control, Cross-device compatibility

**Features:** macOS Compatibility

**In-app purchases:** none


### 闻道HN

[App page](https://appshunter.io/ios/app/hn/id6757374994)

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

**In-app purchases:** none


## Frequently asked questions

### Is iDepth NDI free?

iDepth NDI costs $1.99, with no in-app purchases.

### Is 闻道HN free?

闻道HN is free to download, with no in-app purchases.

### Do iDepth NDI or 闻道HN have ads?

Neither iDepth NDI nor 闻道HN shows ads.

### Which is updated more often, iDepth NDI or 闻道HN?

iDepth NDI ships an update every 9 months, and 闻道HN every 5 months. Most recently, iDepth NDI was updated on November 8, 2026 and 闻道HN on November 5, 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.*