LM-Monitor
NDI® & SRT video monitor
About
This app allows users to monitor live video feeds from professional broadcast protocols like NDI® and SRT directly on their iPhone. It's ideal for confirming video and audio arrival on set or in control rooms without needing additional hardware.
What's New in LM
1.3
August 12, 2026
- Video keeps the correct aspect ratio when the device is rotated - Fixed a crash that could occur when going back from the NDI source list - Fixed audio continuing to play after leaving the SRT player while connecting - Receiving now pauses in the background and resumes automatically when you return - Fixed memory growth after repeated reconnections - Music from other apps is no longer stopped while the monitor's audio is muted
MoreDeveloper apps
FAQ
What is LM-Monitor?
LM-Monitor is a live video monitoring application for iPhone that supports professional broadcast protocols such as NDI® and SRT. It allows users to confirm video and audio arrival on set or in control rooms.
Does LM-Monitor support NDI® sources?
Yes, LM-Monitor features automatic discovery of NDI® sources on your local network, allowing for a one-tap transition to a full-screen preview.
What SRT modes does LM-Monitor support?
LM-Monitor supports SRT receive in Caller, Listener, and Rendezvous modes. It also allows for configuration of passphrase, Stream ID, latency, and I-frame interval.
Can I monitor audio with LM-Monitor?
Yes, LM-Monitor supports simultaneous AAC audio with a convenient mute toggle. You can ensure your audio is arriving correctly along with your video feed.
How does LM-Monitor handle different protocols?
Upon launch, LM-Monitor presents a protocol picker, allowing you to select either NDI® or SRT for your current job. This ensures you are set up for the correct feed.
Is LM-Monitor free to use?
Yes, LM-Monitor is available for free. There are no in-app purchases or subscription fees required to use its core monitoring features.
Does LM-Monitor have ads?
No, LM-Monitor does not contain advertisements. As a free application, it provides an uninterrupted monitoring experience without any ad interruptions.
What devices is LM-Monitor compatible with?
LM-Monitor is designed for iPhone devices. It leverages the capabilities of the iPhone to provide a portable and powerful video monitoring solution.
