I downloaded an app called Party Trivia where multiple people can play using their cell phones. It cost $1.99 but it never worked. I do not care about the money, What ticks me off is that it does not work. I cannot find customer support on this website.
Just wanted you to be aware!! Some apps are ripoffs!!
Roku does not use apps. They are channels. Roku also does not develop over 90% if the channels available to download to your Roku device. I could not find any "PartyTrivia" in the channel store. Only Trivia TV or Trivia Channel. If you highlight the channel on your Roku home screen and press the * button on the remote you will get the developers information. Reach out to them.