Is Apple TV Plus available on Roku / Amazon devices?

Apple rolled out an Apple TV app for Roku streaming players and Roku TVs on October 15, 2019. This means Apple TV+ subscribers can access all Apple TV+ content on all compatible Roku devices. Apple TV+ will not be supported on some older models.

The Apple TV app and Apple TV+ are also supported on Amazon's Fire TV Cube and 3rd gen Fire TV.

Apple TV+ is offered through the Apple TV app for $4.99 a month.