It's long been a bit strange that they had two products. I needed to upgrade onto Unifi Protect as I literally couldn't get the Video app to load, it would just instantly crash.
Protect is nicer, however the app is also fairly buggy. It let's down the quality found elsewhere in their product suites.
Since upgrading to Protect, and rolling out new hardware at a new home, I still need to manually kill the app every time I've used it on iOS. Otherwise it says it can't connect to my system. It'll always work the first time, it'll never work a second.
It's frustrating, and hopefully moving from building two sub-par products, to focusing on one, will improve the experience for everyone.