# NDIntercom — Native NDI Intercom Beltpack > NDI-based intercom app for iPhone, enabling push-to-talk and audio monitoring. (iPhone/iPad app by Mark Gilbert.) - Source: https://appshunter.io/ios/app/ndintercom/id1459496365 (this page in markdown: same URL + `.md`) - Developer: [Mark Gilbert](https://appshunter.io/developer/593898292) - Category: Photo & Video - Price: $19.99 - Rating: 3.50/5 from 2 App Store ratings · 2 written reviews indexed - Age rating: 4+ - Requires: iOS 10.0 · 5 MB - Languages: American English - Released: 2019-04-17 - Data updated: 2026-08-12 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/ndintercom/id1459496365/reviews.md ## What is NDIntercom? This unique app turns your iPhone into a push to talk, and simultaneous receive intercom, using the NDI Protocol. Works on Wifi, Wired or 4G via VPN. Using the industry standard NDI Protocol which is supported by hundreds of software and hardware devices, NDIntercom allows for audio monitoring of any NDI feed on your network for comms listen monitoring as well as talkback. Simply launch the app and a new NDI service will be registered on your network with your PTT audio stream. You can lock down the PTT with the headphone button or a screen swipe. You can also switch to speakerphone and enter an NDI Discover Server address for cross subnet or VPN applications. You can also rename the device. Also supports Bluetooth headsets including Apple AirPods. Has been tested with macOS Server VPN although other VPNs may also work. Requires a direct VPN connection (not relayed) for best results. Use in pairs, or with a whole team monitoring a single director feeds, also compatible with Sienna ND Processing Engine Intercom server for party line operations. See website for compatibility details. NB. NDIntercom provides a low latency audio connection using NDI uncompressed audio. Performance depends on quality of network connection, and may be affected by poor WIFI connections. Solid WIFI connections or a wired connection via lightning to ethernet are strongly recommended. ## Key features - Push-to-talk intercom functionality - NDI protocol support - Audio monitoring of NDI feeds - Talkback capability - Headphone button or screen swipe PTT lock - Speakerphone and NDI Discover Server support - Bluetooth headset compatibility ## Recent user reviews (2 of 2) All indexed reviews: https://appshunter.io/ios/app/ndintercom/id1459496365/reviews.md ### 2/5 — Good concept but bugs ruin it. *2020-10-24* The idea for this is great; but it fails in the execution. I am able to get the speaker phone option to work between two iPhones, however the audio is extremely low at full volume. It would be unueable in a production environment. I have tried three different pairs of Bluetooth headsets and while I am able to use the microphone to a phone receiving in speaker mode, I can not hear any audio. If I could just get that to work then I would give it a higher review. As of now, it’s not worth the money. **Developer response:** Hello Noonproductions Please update to the latest version which addresses the audio level issue. ### 1/5 — 声音小的要死 *2019-10-24* 这么小的声音，68块的玩具都不至于这么糙吧……无语😓…… **Developer response:** 你好小扑 很抱歉得知您的问题。 请联系我们的技术支持以获取帮助。 ## Frequently asked questions about NDIntercom ### What is NDIntercom? NDIntercom is a unique application that transforms your iPhone into a push-to-talk and simultaneous receive intercom system. It utilizes the industry-standard NDI Protocol for audio communication over Wi-Fi, wired, or 4G networks via VPN. ### How does NDIntercom work with other devices? It leverages the NDI Protocol, which is supported by hundreds of software and hardware devices. This allows for audio monitoring of any NDI feed on your network for listening and talkback. ### Can I use NDIntercom with a team? Yes, NDIntercom can be used in pairs or with a whole team monitoring single director feeds. It's also compatible with Sienna ND Processing Engine Intercom server for party line operations. ### What network connections does NDIntercom support? NDIntercom works on Wi-Fi, wired connections (recommended for best results), or 4G via VPN. For cross-subnet or VPN applications, it supports entering an NDI Discover Server address. ### Does NDIntercom support Bluetooth headsets? Yes, NDIntercom supports Bluetooth headsets, including Apple AirPods, providing flexibility for hands-free operation. ### Is NDIntercom suitable for professional use? Yes, NDIntercom provides a low-latency audio connection using uncompressed NDI audio, making it suitable for professional applications. Performance is dependent on network connection quality. ### What is the price of NDIntercom? NDIntercom is a paid application priced at $19.99. It does not feature in-app purchases or advertisements. ### How often is NDIntercom updated? The latest version of NDIntercom is 1.50, last updated on January 9, 2025. This indicates regular updates to maintain functionality and compatibility. ## Version history (last 4 releases) ### 1.50 — 2025-01-09 Improved audio receive performance Implemented AGC Mic Control Added support for NDI Discovery Server Updated to NDI v5.60 ### 1.30 — 2020-12-01 Upgraded to NDI 4.5.2 ### 1.20 — 2019-12-18 Enabled background audio operation. ### 1.11 — 2019-04-17 No release notes. ## 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 --- *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 2026-08-12.*