I contacted UltraFlix support to sign me up as iOS tester.
I just received notice from NanoTech to install TestFlight app. .
TestFlight is a service provided by Apple.

UF is now currently running flawlessly on my IPhone.
I recommend those who use apple products to sign up and do the same.

Thank you David for all your hard work and dedication.
You’re our Rocky Balboa of streaming..... “You ain’t going down”