# WebSocket Client vs RMH NDI MViewer

The clearest difference is rating: WebSocket Client at 4.0 against RMH NDI MViewer's 1.0. WebSocket Client also leads on in-app purchases (none vs 1) and ratings volume (3 vs 1). RMH NDI MViewer's advantage is update cadence (monthly vs every 30 months) and device support (3 vs 1). On price, ads and iOS requirement there is nothing between them.

Both are free to download. RMH NDI MViewer sells 1 in-app purchase, starting at $8.99 per month. WebSocket Client asks for nothing beyond the download.

WebSocket Client holds the better App Store score, 4.0 against 1.0. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

WebSocket Client ships an update every 30 months, RMH NDI MViewer monthly. The most recent releases landed on September 21, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | WebSocket Client | RMH NDI MViewer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (3 ratings)](https://appshunter.io/ios/app/websocket-client/id992888282/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/rmh-ndi-mviewer/id6788793539/reviews) |
| Number of ratings | **3** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 30 months | **Monthly** |
| Monetization | **Free** | Freemium |
| Size | 0 MB | 6 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | iPhone | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Luca Ceci](https://appshunter.io/developer/923764949) | [Racespot Media House GmbH](https://appshunter.io/developer/6788779487) |

## What reviewers say

### WebSocket Client

[App page](https://appshunter.io/ios/app/websocket-client/id992888282)

This tool allows developers to test WebSocket servers and websites. Users can input URLs, including HTTP, WS, and WSS secure connections, along with specific ports, to verify functionality. It's designed as a testing utility for web development.

**Highlights:** Test WebSocket servers, Supports HTTP, WS, and WSS URLs, Input specific ports, HTML5 protocol testing, Developer tool

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

**In-app purchases:** none


### RMH NDI MViewer

[App page](https://appshunter.io/ios/app/rmh-ndi-mviewer/id6788793539)

Transform your Apple devices into professional NDI monitors and multiviewers for live production and streaming. View NDI sources in full-screen or monitor multiple feeds simultaneously with flexible grid layouts and audio level meters.

**Highlights:** Full-screen NDI source monitoring, Flexible multiview grids (2+6, 2x2, 3x3, 4x4), Audio level meters, Automatic NDI source discovery, Low-latency Metal rendering, Supports full-bandwidth NDI and NDI|HX

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| NDI MViewer Pro | $8.99 | per month |


## Frequently asked questions

### Is WebSocket Client free?

WebSocket Client is free to download, with no in-app purchases.

### Is RMH NDI MViewer free?

RMH NDI MViewer is free to download, with in-app purchases available.

### Which has better reviews, WebSocket Client or RMH NDI MViewer?

WebSocket Client is rated higher. WebSocket Client averages 4.0 out of 5 from 3 ratings, while RMH NDI MViewer averages 1.0 from 1 ratings.

### Do WebSocket Client or RMH NDI MViewer have ads?

Neither WebSocket Client nor RMH NDI MViewer shows ads.

### Which is updated more often, WebSocket Client or RMH NDI MViewer?

WebSocket Client ships an update every 30 months, and RMH NDI MViewer monthly. Most recently, WebSocket Client was updated on September 21, 2026 and RMH NDI MViewer on September 28, 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.*