Hi, Fireballs.
Welcome to the Apple Support Communities. We’re glad you decided to reach out about your Apple TV+ subscription. It sounds like you’re using your Apple TV app on various devices, but you aren’t getting the same content available on your Amazon Fire Stick. We may be able to help.
The Apple TV app is a platform where you can manage many of your favorite streaming services from one app. For example, you can watch Hulu, Prime Video, Netflix, and Disney+ content (with subscriptions) from the Apple TV app.
Your Apple TV+ subscription is similar to those services we listed above except that it’s all Apple original content. This allows you to watch shows like The Morning Show, For All Mankind, Dickinson; as well as Apple movies like Greyhound. You should see the Apple TV+ app icon about halfway down the page when you open the Apple TV app on your Amazon Fire Stick.
Apple TV+ - Apple
If you see content available on one device where you’re asked to pay for it on another, you may need to trace the content to the app and make sure you’re logged into that app on your Amazon Fire Stick.
This article may help:
Watch on Amazon Fire TV - Apple Support
All our best.