Seems archaic and not user-friendly

Maybe its an iPhone thing, but it was very challenging to get this app to work with my online streaming accounts. First, what is that home screen about? I have to use a browser embedded in the app to find my online accounts? Why cant I just tie this app to my streaming video apps on my phone? This was very challenging since whenever I went to a website for a streaming video, it would just open my app for that service (I.e.- Netflix). Then I was out of the chromecast app and couldnt figure out how to make them work with each other. I finally got Netflix to work, but I could never figure out Amazon Prime video.
Second, why is the app not named just "Chromecast?" I was never sure if I ever had the right app since the name was complicated and app so un-user friendly. I mean the app looks like it was built by an amateur in their basement. This is not something Id expect from a company like Google.

Jenni OD about Video & TV Cast for Chromecast: Best Browser to watch and stream free movies, webvideos, sports, live tv and camera roll videos, v1.8