# TopDirector (NDI,SRT,UVC,RTSP) — Multicam Switcher, Live Stream

> Multicam video switcher and live streamer with NDI, SRT, UVC, and RTSP support. (iPhone/iPad app by TopDirector Corporation.)

- Source: https://appshunter.io/ios/app/topdirector-ndisrtuvcrtsp/id1581209932 (this page in markdown: same URL + `.md`)
- Developer: [TopDirector Corporation](https://appshunter.io/developer/1581209934)
- Category: Photo & Video, Productivity
- Price: Free with in-app purchases
- Rating: 4.00/5 from 112 App Store ratings · 38 written reviews indexed
- Age rating: 4+
- Requires: iOS 17.6 · 97 MB
- Languages: American English, Chinese (Traditional, Taiwan), Chinese (Simplified, China)
- Released: 2021-09-07
- Data updated: 2026-08-26
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/topdirector-ndisrtuvcrtsp/id1581209932/reviews.md

## What is TopDirector (NDI,SRT,UVC,RTSP)?

- Up to 9 inputs could be TopDirectorCam or any other external A/V sources that support NDI, NDI HX, SRT and RTSP protocols

- Up to 4 UVC(USB -> HDMI) camera inputs on iPadOS 17 

- Start all the built-in cameras on the iPhone/iPad simultaneously (Pro Max models could have up to 4 cameras, the earlier models could only choose one between the front and rear cameras)

- Real-time transition among the external inputs, built-in cameras, and media in the Photo Library

- Full Screen External HDMI & Wireless AirPlay via Screen Mirroring/AirPlay

- Use the RTMP protocol which is used by most of the video platforms to 3 channel live streams, local record for backup, NDI or NDI|HX output at the same time

- No need for cumbersome timeline operations, real-time playback to edit, getting video post-production easily

- Valuable background music feature to easily create electronic albums with the Ken Burns special effects of photos

- Customized and unlimited vector title and shape overlay with professional safety Down Stream Key(DSK) control

- Independent and unlimited layers of translucent logo overlay and clock, countdown, and scoreboard

- Support TopDirectorTitle App for remote title overlay via LAN, suitable for complex subtitle operations in live broadcasting

- Perfectly embedded Apple Pencil (or use finger on the iPhone) to realize online sketch comments

- Picture-in-picture effects for remote interviews, online teaching, video conferencing, etc, fully customizable video source, window size and position, distortion, dynamic background, edges, reflections, blur, and more

- Used in conjunction with TopDirectorCam app for real-time slow-motion playback of live sports games

- All operations support unlimited Undo and automatic alignment snap feature that all the professional people needed

- Support the TALLY feature to mark the current PGM camera when switching among multiple cameras

- Unique security protection keep maintaining output even in the background

- No need to register, no any other subscription fees, one-time purchase for lifetime use

Terms of Use (EULA):
https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Key features

- Multicam switching (up to 9 inputs)
- Supports NDI, SRT, UVC, RTSP protocols
- Real-time transitions and playback
- Customizable overlays (titles, logos, clock)
- Picture-in-picture effects
- Remote title overlay via LAN
- Live sports slow-motion playback

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Unlock All Features | $49.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Picture in Picture Watermark | $14.99 | one-time |
| Logo and Background Music | $14.99 | one-time |
| NDI and TALLY | $4.99 | one-time |
| Screen Mirroring/AirPlay | $9.99 | one-time |
| Video Scopes, Color Grading | $14.99 | one-time |
| Enable USB(UVC) Camera Input | $4.99 | one-time |
| PTZ Camera Control | $9.99 | one-time |
| UTitle, Title, NTitle, SuperFG | $14.99 | one-time |
| Unlimited PGM Duration | $14.99 | one-time |


## Recent user reviews (10 of 38)

All indexed reviews: https://appshunter.io/ios/app/topdirector-ndisrtuvcrtsp/id1581209932/reviews.md

### 5/5 — Titles

*2026-07-02*

The app is great. But the design of the titles leaves much to be desired.

### 2/5 — Hidden price, very expensive product

*2026-05-31*

I am regretting buying this app, it have a hidden pricing, the app show 14.9$ lifetime buy I ended up to pay more then 150$, and when i requested a refund none reply, do not buy the app if you do not want to burn your money

### 1/5 — Does not work

*2026-03-07*

Crashes at opening in iPad Pro M2

**Developer response:** Hi, could you please contact us at www.topdirector.com/contact/ to help us to improve the performance?

### 2/5 — Never got results

*2026-02-19, version 1.8.7*

I wanted to record iPad camera at 60fps and NDI input at 60fps. NDI was ok but iPad always 30fps despite correct config. The dev never wanted to fix. Not a cheap app when you add essential IAPs.  For me, a waste of money.

### 5/5 — A true game-changer for portable churches

*2025-12-18, version 1.8.4*

⭐️⭐️⭐️⭐️⭐️
Top Director has completely changed how we handle video as a portable church. The fact that this app runs with zero wires is a total game changer. No long cable runs, no tangled mess, no setup stress. We can walk in, power up, and go live.

One of the best parts is the ability to pick and choose only the upgrades you actually need. You’re not forced into an expensive, bloated system. Between that flexibility, not needing dozens of extra cords, and being able to use devices we already owned, this app literally saved us thousands of dollars compared to traditional setups.

When we discovered the Bluetooth video switcher on Amazon made specifically for this app, we knew instantly this was the right solution for us. Having that level of control without extra hardware fits perfectly with a mobile, fast-setup environment.

If you’re a church, ministry, or organization that sets up and tears down regularly, and you want professional results without professional-level headaches, Top Director is absolutely worth it.

You can create an NDI camera feed from almost any device of PC for extra cameras and worship lyrics on screen. Only thing is you really should have a serious internet connection and strong router to run multiple wireless cameras. 

The ability to color grade with LUT’s, use transitions live, ad background music, and video intros and outros make this an absolute beast do a system. 

Cost- 
Honestly, we bought the $399 Bluetooth switcher console, and about $100 worth of in app upgrades, not realizing they came free with the console 😂. Even with that, our out of pocket expenses are way down over all and we OWN the system, not just another year of hundreds of dollars in subscriptions. Do the math. Win win. 

Highly recommended.

### 1/5 — Don’t waste your money

*2025-09-09*

Airmix is free and you can customize it more

### 4/5 — PIP Templates

*2025-01-14, version 1.6.9*

This app is best suit my needs, I only wish that there is PIP template with square or round screen other than just rectangular screens available.
Best app so far
Thank you,

### 1/5 — I paid for every option but output video is reversed

*2024-10-29*

Please fix. Very disappointed, the app has a lot of promise.

**Developer response:** Only built in selfie camera can be flipped in camera settings. If all the PGM output is reversed, please contact us directly, we need more clues to figure it out. www.topdirector.com/contact/

### 1/5 — Nice app but Update the App

*2024-08-25, version 1.6.1*

This app has nice features, however when syncing my IPad Pro 4th GEN 12.9 inch, with my IPhone 12 Pro Max, on a fast Wi-Fi router, the ipad sync up with the iphone, then it freezes. I tried another Wi-Fi router , and had the Wi-Fi router right next to the ipad and the iphone, for a good signal strength, but get same results, it freezes. I also have Fiber Optic high speed internet Service at my Residence, and it’s very fast, so it cannot be a Network issue, nor anything wrong with my IPad Pro 4th Gen, or my IPhone 12 Pro Max. 512 GiG. I have an app that Apple used to have for 5 Bucks, it was called Reco Studio, I just tried it with my IPad Pro 4th Gen, and my IPhone 12 Pro Max, on the same Wi-Fi router, and it works excellent, and doesn’t freeze! There is something wrong with the Top Director App. I did reach out to the Technical Support, was told that the problem appears to be my slow router or iPad and iPhone. I don’t think so. Please update the app so it doesn’t freeze, also, update the app so the iPhone doesn’t have to start recording in order to sync it to the iPad. Latest update 7/28/2024, I just completed the latest update this morning, when launching the Top Director app now, I keep getting the option to delete the Top Director album, and every time I select “Don’t allow, the app will not open, and now after trying several times of saying don’t allow, I finally decided to try “allow”, now the app crashes every time. I power-cycled my IPad Pro 4th Gen, and tried to open the app, but it still crashes. Please fix the issue. Thank you..

### 4/5 — Suggestions

*2024-08-24, version 1.6.1*

Excellente appli,mais il faut un texte roulant dans le overlays.

## Frequently asked questions about TopDirector (NDI,SRT,UVC,RTSP)

### What does TopDirector do?

TopDirector is a multicam switcher and live streaming app that allows you to switch between various video inputs, including external cameras supporting NDI, SRT, UVC, and RTSP protocols, as well as built-in device cameras. It enables real-time transitions, recording, and live streaming to platforms using RTMP.

### What are the key features of this app?

Key features include support for up to 9 video inputs, real-time transitions, customizable title and logo overlays, picture-in-picture effects, remote title control, and live sports slow-motion playback. It also offers unlimited undo and automatic alignment snap for professional workflows.

### How much does TopDirector cost?

The app is a one-time purchase for lifetime use. There are no registration requirements or additional subscription fees.

### What devices is TopDirector compatible with?

The app is designed for iPhone and iPad. It supports up to 4 UVC camera inputs on iPadOS 17 and can utilize built-in cameras on iPhones and iPads, with Pro Max models supporting more simultaneous camera use.

### What are common use cases for TopDirector?

Common use cases include live streaming events, online teaching, video conferencing, remote interviews, and live sports broadcasting. Its advanced features make it suitable for professional video production and content creation.

## Version history (last 5 releases)

### 1.9.6 — 2026-08-22

1. Added support for saving and restoring camera settings
2. Added support for subscriptions and Offer Code redemption for third-party partners
3. Improved performance at 4K resolution
4. Bug fixes and performance improvements

### 1.9.5 — 2026-08-04

1. Audio now plays through both iPhone stereo speakers
2. Bug fixes and performance improvements

### 1.9.4 — 2026-06-06

1. Swipe Down in Camera Settings to Map NDI Sources Sequentially
2. Bug fixes and performance improvements

### 1.9.3 — 2026-05-30

Bug fixes and performance improvements

### 1.9.2 — 2026-05-28

1. U-Title control URL support with real-time updates and dynamic preview
2. Display the real-time continuous drawing process when using Apple Pencil annotation and markup features
3. Bug fixes and performance improvements

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## More apps by TopDirector Corporation

- [TopDirectorCam(NDI/SRT Camera)](https://appshunter.io/ios/app/topdirectorcamndisrt-camera/id1581278019)
- [TeleprompterMax](https://appshunter.io/ios/app/telepromptermax/id1597412294)
- [NDI Multiview](https://appshunter.io/ios/app/ndi-multiview/id1597816542)
- [NDI Player](https://appshunter.io/ios/app/ndi-player/id1644447464)
- [NDI Screen Capture](https://appshunter.io/ios/app/ndi-screen-capture/id6471483473)

All apps by TopDirector Corporation: https://appshunter.io/developer/1581209934

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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 2026-08-26.*