Back in April, Google and Amazon announced they were working together on adding Chromecast support to the Prime Video app and an official YouTube app for Fire TV.

Back in April, Google and Amazon announced they were working together on adding Chromecast support to the Prime Video app and an official YouTube app for Fire TV.
Google and Amazon have announced that the two companies are working on an official YouTube app for Amazon’s Fire TV devices and Fire TV Edition TVs and also add support for Chromecast in the Prime Video app.