Streaming from a Phone
Last updated: October 24, 2026
You can sell live from a phone. Streamster accepts any standard RTMPS stream, and the setup checklist on your dashboard sets up Larix Broadcaster (iPhone and Android) for you: scan one code and your Streamster connection is added. OBS on a computer is one option, not a requirement. Read the limits below before you plan a long live.
Honest limits
- Larix's free version is 30 minutes per live. After 30 minutes Larix adds its own watermark for another 30 minutes, then stops the stream. Larix Premium ($9.99/month or $119/year, sold by Softvelum, not Streamster) removes both. For a longer live without paying, use OBS on a computer. PRISM Live Studio also accepts a custom RTMP server (paste the Server URL and Stream Key).
- Getting your Facebook or Instagram key. Facebook's persistent key comes from Live Producer (a desktop page; save it in Streamster once). Instagram-only sellers don't need a key during setup: choose “I'll paste my Instagram key when I go live”, then paste a fresh key from Instagram Live in the Go live panel before each Instagram live.
- No on-screen Buy card from a phone. The card is an OBS Browser Source; phone apps can't add it. Pin your link (
streamster.shop/@yourname) as the first comment and say the item's code: viewers type it on your link to hold the item while they pay. Buyers on your Streamster watch page still see the card. - Instagram is vertical. Instagram shows live video as 9:16. Hold the phone upright for Instagram; landscape video gets cropped.
- Phones get hot and drain fast. Plug in, use Wi‑Fi rather than cellular, and turn on Do Not Disturb so a call can't interrupt the stream.
1. Set up Larix with one scan
- Install Larix Broadcaster from the App Store or Google Play.
- On your dashboard, open Test your camera (phone or computer) in the setup checklist and pick Phone.
- On a computer: scan the code with your phone's camera (on Android, any QR scanner app). On the phone itself: tap Open in Larix. Larix asks to add a connection called Streamster: accept it.
- Press Larix's round record button, then I've started streaming, check now on the dashboard. The step ticks within seconds of your video reaching us, with a still from your camera. Nothing goes to Facebook or Instagram during this test, and it isn't billed.
The code holds your private Stream Key: don't share it or post a screenshot of it. (It uses Larix's documented “Larix Grove” import link, larix://set/v1?conn[][url]=….)
2. Or add the connection by hand
- In Larix tap the settings (gear) icon → Connections → New connection.
- In URL, paste the Server URL, then a
/, then your Stream Key (both are under Another app, or set it up by hand in the same step):rtmps://global-live.mux.com:443/app/YOUR-STREAM-KEY - Give it a name (for example “Streamster”), save it, and make sure it's the only connection switched on.
Other RTMP apps work the same way: look for a Custom RTMP server and paste the Server URL and Stream Key (some apps have separate fields for each).
3. Pick sensible video settings
- Resolution 1280×720 (720p), 30 fps
- Bitrate around 2,500–4,000 Kbps on good Wi‑Fi
- Keyframe interval 2 seconds
4. Go live, same order as OBS
- On Streamster's Go live panel (it works in your phone's browser), paste a fresh Instagram key if you're using Instagram, then tap Prepare to go live.
- Then switch to Larix and tap the record/stream button. The Go live panel flips to “Receiving your stream”.
- Press Go Live on Facebook and/or Instagram, as you would with OBS.
- While you're live, the Go live panel shows each sale as it comes in, your totals and the line-up (Next item). See Live selling tools.
- When you're done, stop the stream in Larix and tap End broadcast & disconnect platforms in Streamster. Your show summary opens from there and arrives by email.
If the panel keeps waiting for your feed, the cause is almost always the URL: check there is exactly one / between/app and your key, with no spaces. More fixes: Troubleshooting.