NDIntercom vs NDI Switcher
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
NDIntercom
Transform your iPhone into a push-to-talk intercom system using the NDI protocol. Ideal for professional audio monitoring and communication, it supports various network connections and Bluetooth headsets for flexible use.
- 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
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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.
NDI Switcher
Easily switch between multiple NDI video sources on your local network. Preview feeds, select one for output, and even record them individually or simultaneously. Export recordings for further editing.
- Connect up to 6 NDI feeds
- Preview individual camera feeds
- Select one source for output
- Rebroadcast selected feed via NDI
- Record individual or all feeds
- Export recordings for editing
- Set transition times between feeds
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Switch between your NDI video sources! Focus allows you to connect and select multiple camera feeds, and other NDI video feeds on your local network. Preview your camera feeds, and select one source to output from your device. Connect to OBS over local network. Features include: * Up to 6 simultaneous feed connections (device/network dependent). * Rebroadcast your selected feed to other devices, via NDI. * Share your selected feed full-screen to any connected display, via AppleTV or via HDMI adaptor. * Select feed quality of each individual feed. * Record individual feeds or all at once. * Export recordings from the app to edit in other applications. * Set transition times between feeds. Focus is developed in Aotearoa New Zealand, by David Wood. David loves making real-time video tools, that anyone can use. --- Please note: Video feed quality dependent on your receiving device, any NDI cameras or other devices sending NDI video feeds, and the quality of your network. It is recommended to use a wired ethernet connection with your device, and a 1Gbps (1000BASE-T) ethernet switch or dedicated wifi router with good range/signal strength. -- Focus is © David Wood NDI and the NDI SDK, is © NDI Inc EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is price: NDI Switcher at Free against NDIntercom's $19.99. NDI Switcher also leads on update cadence (every 3 months vs every 12 months). NDIntercom's advantage is rating (3.5 vs 1.0) and in-app purchases (none vs 3). On review sentiment, ratings volume, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
NDI Switcher is free to download; NDIntercom costs $19.99 up front. NDI Switcher sells 3 in-app purchases, starting at $4.99 per month. NDIntercom asks for nothing beyond the download.
NDIntercom holds the better App Store score, 3.5 against 1.0. Both are backed by a comparable volume of ratings — 2 and 2 respectively. Written reviews split almost evenly too, at 0% and 0% positive.
NDIntercom ships an update every 12 months, NDI Switcher every 3 months. The most recent releases landed on August 12, 2026 and August 21, 2026 respectively.
| Parameter | NDIntercom | NDI Switcher |
|---|---|---|
| Price | $19.99 | Free — better |
| Rating | 3.5 (2 ratings) — better | 1.0 (2 ratings) |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| Number of ratings | 2 | 2 |
| Update frequency | Every 12 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 10.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 5 MB | 14 MB |
| Age rating | 4+ | 4+ |
| Developer | Mark Gilbert | David Wood |
Customer experience
NDIntercom
NDI Switcher
In-app purchases
NDIntercom
No in-app purchases
NDI Switcher
- Monthly$4.991 Month
- Annual$14.991 Year
- Lifetime$24.99





