# NDI Monitor — Display NDI Streams with Audio

> Mobile NDI stream viewer with audio and advanced control features. (iPhone/iPad app by Mark Gilbert.)

- Source: https://appshunter.io/ios/app/ndi-monitor/id1196221514 (this page in markdown: same URL + `.md`)
- Developer: [Mark Gilbert](https://appshunter.io/developer/593898292)
- Category: Photo & Video
- Price: $9.99
- Rating: 3.30/5 from 27 App Store ratings · 48 written reviews indexed
- Age rating: 4+
- Requires: iOS 14.0 · 8 MB
- Languages: American English
- Released: 2019-05-01
- Data updated: 2026-09-01
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/ndi-monitor/id1196221514/reviews.md

## What is NDI Monitor?

Professional NDI Monitor from global IP Video leaders Sienna.

NDI sources on your local subnet are presented in a pop up menu to select, when you tap on the screen. If you enter additional 'NDI Access' IP Addresses from other subnets into the system prefs panel for NDI Monitor, those NDI sources may also be accessed.  Includes support for NDI Discovery server (see app settings), resolution control, video flip for autocue and control of NDI network Protocol for reliability.  A preference allows 9x16 streams to be shown in portrait mode for social media production workflows.

Notes: A very stable WIFI connection, or a wired ethernet connection are required for smooth playback of NDI Streams. Using a directional WIFI antenna and using the sweet spot of your wifi can help. If you experience glitching of audio or dropped video frames, the problem is very likely a wifi connection which is insufficiently stable to support smooth NDI video to iOS - in this case please try a wired ethernet to lightning adaptor.

You should not expect perfect performance when selecting Hi Resolution NDI - which is offered as an experimental mode for users with very fast devices, on very fast, clean network connections.  In some cases you may see great results in hi res.

There are preferences in the System Settings app for NDI Monitor to setup application options. You can also use the app NDI Scanner as a stream selector -  it will open NDI Monitor when you click on a selected stream. You can also now set the NDI Device name, required for multi device operations with iOS17
 
NB. This app does not support NDI | HX1 format streams - only NDI full bandwidth format or NDI HX2/3

Set the "NDI Device Name" in the app settings if you are using multiple devices on the same network - to give them unique names.

## Key features

- Discover NDI sources
- Select NDI streams
- Resolution control
- Video flip for autocue
- Portrait mode for social media
- NDI Discovery server support
- Set NDI Device Name

## Recent user reviews (10 of 48)

All indexed reviews: https://appshunter.io/ios/app/ndi-monitor/id1196221514/reviews.md

### 1/5 — Simply does not work at all

*2026-08-10*

Mid streams appear, but when you tap them, they do nothing at all. The app just returns to the holding screen. Do not waste your money

### 4/5 — View

*2026-01-26*

The view position is not displayed normally in the iPad 12.9 os26.2 multi-tasking window-type app view. -Sugesation: Please support some icons to pop up the setting window when the screen is touched. It's inconvenient because it pops up every time the window is displayed.

### 3/5 — UI、UX周りを改善して欲しい

*2025-11-09*

画質、接続共に文句無しですが改善して欲しいのが

①アプリ起動中にコントロールセンターを出そうとすると強制的にアプリから締め出されてしまう。iPhoneの明るさ調節など出来ない。

②タップしただけで検索画面に行ってしまうと誤タップが怖い。タップしたら右上にXボタンが出てくるとかにして欲しい

③横向き固定ではなく縦でも使えると嬉しい

iPhone 12 mini
iOS 18.5

### 5/5 — Works as intended

*2025-09-10*

Works as intended in iPad Air 2 OS 15.6. Delay on 5Ghz Wi-Fi is around 200-500ms, almost seamlessly.

### 4/5 — Works for me

*2025-02-23*

One feature to make it perfect: Background play.
Keep playing when screen is off! 😀

### 2/5 — O som parou de funcionar

*2025-01-17*

Me deixou na mão, o áudio parou de funcionar e não é meu dispositivo, pq nem no iPhone nem no iPad o áudio é recebido, precisei comprar outro app

**Developer response:** Hello Kohjac Will Make sure you device is not in airplane mode. if you continue to experience a problem please contact our support by email.

### 5/5 — Simple and effective

*2024-08-13*

This is the lowest latency NDI monitor that I’ve found.
It’s noticeably quicker than Top Director. However, Top Director is significantly more feature rich.

### 3/5 — Funktioniert - aber mehr Features wünschenswert

*2024-06-03*

Also an sich macht die App ja was sie soll und das auch sehr zuverlässig - deshalb sollte Mal eigentlich zufrieden sein.

Aber: Seit Ewigkeiten stützt die App jedes mal ab wenn man das Kontrollzentrum öffnet - das ist echt lästig.

Außerdem wären einige kleinere Features wünschenswert.

- Wiedergabe im Hintergrund
- speichern der aktuellen Wiedergabe (dass nicht bei jedem öffnen das Signal erneut angewählt werden muss
- UV-Meter
- Anzeige von tech. infos zum NDI Signal wie Format oder Statistiken zur Übertragung

Es würde mich freuen wenn es hier zu ein paar Updates gäbe!

### 2/5 — NO Audio-Disappoint

*2024-03-29*

Video quality is good but I can’t get the audio. 
Disappointed.

**Developer response:** Hello Hejar berenji

Make sure you device is not in airplane mode.  if you continue to experience a problem please contact our support by email.

### 5/5 — Best NDI monitor I’ve found

*2024-02-07*

This app does an excellent job of finding NDI sources and of playing both NDI audio and video. Highly recommended!

## Frequently asked questions about NDI Monitor

### What does NDI Monitor do?

NDI Monitor allows you to view NDI video streams with audio directly on your device. It helps you discover NDI sources on your local network and can also access sources from other subnets if configured. You can select streams, control resolution, and even flip the video for autocue purposes.

### What are the key features of NDI Monitor?

Key features include the ability to discover and select NDI sources, control video resolution, flip video for autocue, and support for NDI Discovery servers. It also offers a portrait mode for social media production workflows and allows you to set a unique NDI Device Name for multi-device operations.

### How much does NDI Monitor cost?

NDI Monitor is a paid application. The provided information indicates it does not have in-app purchases or ads, suggesting a one-time purchase price for the full functionality.

### What are the network requirements for NDI Monitor?

For smooth playback of NDI streams, a very stable Wi-Fi connection or a wired Ethernet connection is required. If you experience glitches or dropped frames, it is likely due to an unstable Wi-Fi connection. Using a directional Wi-Fi antenna or a wired Ethernet to Lightning adapter can help improve stability.

### What NDI formats does NDI Monitor support?

NDI Monitor supports NDI full bandwidth format and NDI HX2/3. It does not support the NDI | HX1 format streams.

## Version history (last 5 releases)

### 6.05 — 2025-10-07

Local Network permissions fixes for iOS 26

### 6.02 — 2025-09-25

Added 9x16 Rotation preference for social media workflow monitoring
Updated the NDI library

### 6.01 — 2024-06-05

Fixed minimum deployment target

### 6.00 — 2024-05-31

Added NDI6 Support
Added Support for Split Screen operation

### 5.52 — 2023-10-11

Restored iOS 12.x support

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## More apps by Mark Gilbert

- [Strata Pro](https://appshunter.io/ios/app/strata-pro/id593898289)
- [Strata Lite](https://appshunter.io/ios/app/strata-lite/id594041964)
- [Strata View](https://appshunter.io/ios/app/strata-view/id594043002)
- [HyperRemote](https://appshunter.io/ios/app/hyperremote/id669079489)
- [WebNDI](https://appshunter.io/ios/app/webndi/id1073741051)
- [NDICam](https://appshunter.io/ios/app/ndicam/id1074065391)

All apps by Mark Gilbert: https://appshunter.io/developer/593898292

## Related topics

[vislive ndi monitor](https://appshunter.io/ios/topics/vislive-ndi-monitor) · [ndi monitor pro](https://appshunter.io/ios/topics/ndi-monitor-pro) · [ndi monitor](https://appshunter.io/ios/topics/ndi-monitor) · [ndi camera monitor](https://appshunter.io/ios/topics/ndi-camera-monitor) · [ndi viewer](https://appshunter.io/ios/topics/ndi-viewer)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-01.*