Hi Andreas

I use NDI apps for iOS and Android regularly without any issue at all with obviously a solid Wifi infrastructure and expertise.

What do you call "a solid mesh wifi infrastructure" ? Please describe...

The Mesh tech is not the best solution to rely on for such things as NDI IMHO.

Do you use tools like iperf3 to check your Wifi speed ?

Based on my gear and setup, I can easily cover a 2500 m² venue and provide from any position a minimum of 200 to 300 Mbits thoughput capacity for each device with roaming. More than enough for a perfect and smooth NDI production using smartphones.

Guillaume

I'm with Ubiquiti too but I keep UAP-AC-M for simple Wifi setups where I only provide public Internet access for events.
For NDI, I make sure to go 5GHz setups only, using multiple UAP-AC-HD where Multi-User MIMO makes a huge difference.
Smartphones are basic ones like Sony Xperia, OnePlus, LG G6 or Samsung. For iOS, anything above 6.

Are all your UPA-AC-M wired ? If not, you're losing a lot of bandwidth already, but I don't think these are appropriate for NDI anyway.

Don't wanna hear about NDI|HX, that's not professional, just marketing bullshit

Hang on here. Some context. You're talking about an free or cheap RTSP app for a mobile phone over consumer grade Wi-Fi.

NONE OF THAT WAS MADE FOR BROADCASTING.

FWIW, I see more diversity of such apps in the android world. There are even some that support USB connected cameras or capture devices, making an Android phone into a wireless video link.

Also, does the above thread really discuss a Wi-Fi "mesh" or just a private Wi-Fi installation for the event? Mesh is more about the convenience of not having wired backhaul for all the APs. Even though that is the way to ensure better performance.

Regarding apps, I'm not a iOS fanboy but NDI apps for iOS work great. I prefer the one from Sienna over Newtek's but they're both OK.

On Android, Newtek NDI Cam is valuable though the app could be more professional for better control over the image quality. Requires a very powerful Wifi infrastructure as I said already. I already had 5 devices simultaneously providing flawless 720p to vMix.

Many other apps can feed vMix directly using different protocols below 1 second latency.

I like "RTSP Camera Server" (there is also "RTMP Camera" from the same developper but needs obviously an RTMP server in between)
Also "Screen Stream Mirroring" which unlike its name implies also uses the camera to stream. It's I think the most complete and interesting streaming app for android as it handles many streaming protocols with complete settings for many use cases.
Also "CamON Live Streaming" which is aiming at video spying (runs as an invisible service, allowing remote viewing dicretely) but streams very well when used for professional productions. It's just important to realize it was not designed for this

Guillaume

Apps like Sienna NDICam on iPhone also work great with common lightning to ethernet adaptors. eliminates WIFI entirely.