Moblin, IRLPro or Larix? App Comparison
StreamRelay·August 8, 2026·3 min read
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Three apps dominate mobile IRL streaming right now: Moblin, IRLPro, and Larix Broadcaster. All three turn your phone into a live camera and send the feed to a relay, which hands it off to OBS on your PC. The right pick depends on your platform (iOS vs Android) and whether you need connection bonding for unreliable signal. Here’s how they stack up, with a full setup guide for each.
At a glance
| Moblin | IRLPro | Larix Broadcaster | |
|---|---|---|---|
| Platform | iOS | Android | iOS & Android |
| Cost | Free, open-source | Free | Free download, longer streams need Larix Premium |
| SRT | Yes | Yes | Yes |
| SRTLA (bonding) | Yes, native | Yes, native | No |
| RTMP | Yes | Yes | Yes |
| Best for | iPhone users wanting bonded connections | Android users wanting bonded connections | Simplest single-connection setup, either platform |
Moblin (iOS)
Moblin is a free, open-source iPhone app built specifically for IRL streaming. It handles SRT, SRTLA, and RTMP, and the SRTLA bonding is native, so combining Wi-Fi with two or three SIM cards into one sturdier connection takes no extra plugins or workarounds.
IRLPro (Android)
On Android, IRLPro covers the same ground: free, with RTMP, SRT, and built-in SRTLA. If you’re driving through patchy coverage or streaming from somewhere crowded, bonding several connections means one dropout doesn’t take your whole stream down with it.
Larix Broadcaster (iOS & Android)
Larix is the odd one out here: it works on both iPhone and Android, but it only speaks SRT and RTMP, not SRTLA. No bonding means no combining connections. That’s fine if a single decent connection, strong Wi-Fi or solid cellular, is all you need. It’s also the one app in this comparison that behaves identically whichever phone you’re on.
Which one should you pick?
If you’re on iPhone and want the option to bond connections when the signal gets unreliable, go with Moblin. Android users looking for the same bonding capability should pick IRLPro. And if a single connection is all you’ll ever need, or you just want one app that works the same on both platforms, Larix is the simpler path.
Choose RTMP or SRT/SRTLA when you create your StreamRelay endpoint, then enter its connection details in the app. With an SRT/SRTLA endpoint, the connection mode depends on your app: plain SRT or SRTLA bonding. See SRT vs SRTLA vs RTMP for the comparison.
Frequently asked questions
Which app should I use for mobile IRL streaming? Moblin (iOS) or IRLPro (Android) if you want SRTLA connection bonding across multiple SIMs. Larix Broadcaster if you’re on iOS or Android and only need a single stable connection, it doesn’t support SRTLA.
Do all three apps work with StreamRelay? Yes. StreamRelay supports RTMP and SRT/SRTLA. An endpoint is set up for RTMP or SRT/SRTLA; in SRT/SRTLA mode, you can use plain SRT or SRTLA bonding depending on your app and connection.
What’s the difference between SRT and SRTLA in these apps? SRT sends your stream over one connection with error recovery built in. SRTLA does the same but bonds several connections (e.g. Wi-Fi plus two or three SIMs) into one, if one drops, the others keep the stream up.
Keep reading
New to IRL streaming? Start with the phone-to-OBS guide or the complete IRL streaming guide.