Larix Broadcaster: Live Stream 4+

RTMP, SRT, NDI Streaming App

Furtree Systems, Inc.

Designed for iPad

    • 3.6 • 129 Ratings
    • Free
    • Offers In-App Purchases

Screenshots

Description

Powerful live streaming app with RTMP, SRT, NDI, WebRTC & more

Larix Broadcaster is a professional streaming camera app for video and audio contribution using SRT, RTMP, Zixi, NDI, WebRTC, RTSP, and RIST protocols. It is built for mobile journalism, IRL streaming, remote production, and other live broadcasting workflows.

The app supports live streaming from iOS devices with high performance and flexibility. It offers H.264 and HEVC (H.265) video encoding, and AAC or Opus audio depending on protocol. It supports SRT in Caller, Listener, and Rendezvous modes (libsrt v1.5.3), with multipoint listener functionality. RTMP and RTSP are available with SSL (RTMPS/RTSPS). WebRTC is supported through WHIP signaling. Zixi integration provides AVC/HEVC support, SEI metadata, and Grove compatibility. NDI HX2 offers preview, Discovery Server support, and metadata setup. RIST streaming is supported in Push mode with Main and Simple profiles via librist v0.2.7.

You can configure multiple connection profiles and stream to several destinations simultaneously. The app includes a stand-by stream mode to launch in a paused state with different overlay settings. Pause is also supported to send muted sound and replace camera with alternate content.

Talkback is available via SRT, RTMP, Icecast, and SLDP, enabling audio return.

Larix supports UltraHD resolution and Dolby Vision HDR (via the HDR video menu). Both front and back cameras are supported, with live flipping, rotation between portrait and landscape, and hot switching. Multi-camera capture with picture-in-picture and side-by-side modes is available on iPhone XR, XS, and newer devices. It supports dual/triple camera setups including wide and telephoto lenses. Center Stage for iPads is also supported.

Camera controls include auto-exposure lock, white balance lock, manual color temperature, and pinch-to-zoom.


Adaptive bitrate streaming (ABR) is supported for SRT, with options for logarithmic descent, ladder ascent, and hybrid adjustment. Variable frame rate is also supported. ABR is disabled by default and can be enabled in the Video settings.

Bluetooth audio input and audio-only streaming are supported.

USB camera input is available on iPadOS 17 and later.

You can record streams as MP4 files, take screenshots, and save to iCloud. Recording customization allows higher resolution, alternate compatibility settings, and input gain control.

SEI metadata can be inserted into SRT, WebRTC, and RTMP streams for NTP sync using the Advanced menu.

Overlay features include GPS-based HTML overlays (requires Larix Premium), image, text, HTML layers, date/time overlays using Unicode LDML, and web widgets. You can assign specific overlays to live, paused, or stand-by states, and enable or disable layers while streaming.


Larix Grove enables easy sharing via deep links or QR codes. Visit https://softvelum.com/larix/grove/ for details.

Larix Broadcaster supports streaming to any media destinations including Nimble Streamer, Wowza, Red5, Flussonic, vMix, OBS Studio, and others. It works with major platforms like YouTube Live, Facebook Live, Twitch, Kick, Restream.io, Dacast, Cloudflare Stream, and more.

Larix Tuner cloud service support adds remote control, configuration backup, and session statistics. Visit the Larix Tuner website for more information.

Many features require a Larix Premium subscription. Premium removes the default overlay. It also unlocks multiple simultaneous outputs, Talkback, advanced overlays, ABR streaming, WHIP publishing, stream auto-start, USB/UVC camera support, and other. Learn more at https://softvelum.com/larix/premium/

Tutorials and documentation:
~ https://softvelum.com/larix/docs/
~ https://www.youtube.com/watch?v=Dhj0_QbtfTw
~ https://www.youtube.com/watch?v=4jOJm0XNxZc

Join our public beta testing at:
https://testflight.apple.com/join/mdxzNOxZ

Larix Broadcaster uses Apple’s Standard License Agreement:
https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

What’s New

Version 1.7.1

~ Support for NDI license in Larix Tuner
~ Fixed NDI streaming

Ratings and Reviews

3.6 out of 5
129 Ratings

129 Ratings

MaestroJAL ,

Heading in the wrong direction

This app has constantly been my “go to” app for streaming RTMP from my phone. It has solid features, it is reliable, and easy to use. I have recommended this app to many people over the years, as I use this technology almost daily.

Recently, I’ve been watching as each update takes away standard features and puts them behind a rather premium subscription - $9.99 a month or roughly $120 a year. Most recently, a limitation was added to free streaming to your own self-hosted endpoint. My streams are usually about two hours long and would be cut off.

While I completely understand needing to make profit on one’s labor, I cannot justify spending that kind of money on this product when there are other capable apps that allow free streaming and pay-once-for-the-feature upgrades. Furthermore, slowly taking away features that were already part of the app’s free offerings and placing them behind a paywall, in my opinion, is not good.

The app is great and functions well (5 stars). The pricing scheme has forced me to look elsewhere (-2 stars).

Developer Response ,

Thank you for sharing the extended review. Our team had to move to monetization model for the features used by advanced streamers, hence the in-app subscription. Thank you for supporting us.

Lolcats of rpg ,

Getting worse and worse… Been using the app for over a year

UPDATE: I did update to your new version from 2 days ago, and the rotation bug is NOT fixed for overlays on PREVIEW, which I use extensively to read live chat and alerts! Its still upside down on preview and only right side up on the live end feed. Please test your product because its frustrating having to pay subscription for the product and be your QA as well. I use the software 5 days a week and this has been broken for 2 versions now, I can now only broadcast without live rotation mode until this is fixed… very frustrated.

Had no problem with paying monthly fee except now there are more bugs than ever!! Latest bug makes overlays upside down when using live rotation mode, is there anyone even testing this app before releasing new versions? Not to mention it now crashes freq and does not support srtla … it was a good app I will give it one more week to fix the upside down overlays before deleting and cancel my monthly sub.

Developer Response ,

We are sorry for inconveniences. Can you please send us more details at https://softvelum.com/mobile/help/ about these issues? We cannot effectively communicate about issues via reviews.

Jonathan.Colon ,

Was an amazing app until they decided to paywall free streaming and watermark your stream

Great features! Best live streaming app out there especially for twitch IRL from an iPhone. until recently you could go live as long as you wanted no issues. Now if you stream over 30 minutes they place an ugly watermark over your stream unless you pay them 9.99 a month. This is unacceptable especially with the lack of a manual and explanation of features. I googled “audio engine Larix” to see how this feature works and there is little or no information explaining most of the features in the app. They also offer ndi streaming for $20 and fail to explain what the feature provides. Do I no longer need a server to push my feed to OBS if I use NDI over cellular data? That’s the only way I can justify paying $20 a month since servers cost money. I am confused. Maybe work on some documentation for your software then start charging for basic features that were already free.

Developer Response ,

Thank you for sharing. We'll add more clarification for NDI support to remove confusion.

App Privacy

The developer, Furtree Systems, Inc., indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More

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