Tried it out on my phone, app crashes every time I press "go to room". I'm using iPhone SE from 2016 so maybe my phone is too old for the GPU features? Alas! Was looking forward to trying it.
As a side note the UI looks like a toy or joke app. I'm not sure what market you're going for (it seems like a general purpose video chat app?) but you might want to reconsider the aesthetic.
I've gotten a repro of that issue on an A9 IPad (happened to be on IOS 14.x too, but deemed not relevant), something silly to do with Metal Language versions that was easily fixed. A new build that also fixes the UI issues others have reported is on its way out, please email me at jacob@vertigo.ai if you want beta access via Testflight. Should be GA within 1-2 days.
As a side note the UI looks like a toy or joke app. I'm not sure what market you're going for (it seems like a general purpose video chat app?) but you might want to reconsider the aesthetic.