The app is the viewing container
The Apple TV app appears on supported Apple devices, smart TVs and streaming hardware. Installing it gives you a place to sign in and view eligible content; installation does not subscribe you to everything displayed inside it. Some versions of the app have fewer store or channel features than others.
The Apple subscription is one part of the app
Apple distinguishes its own subscription programming from third-party channel memberships and films or programmes offered for rental or purchase. A programme page can therefore show a paid option even when you already subscribe to Apple TV. Read the offer attached to the selected title rather than assuming that every tile is part of the subscription.
Channels have their own subscriptions
Apple TV channels are third-party subscriptions watched inside the Apple TV app where available. They can have separate prices, renewal conditions and regional limitations. A channel’s website or native app may not accept the same entitlement. Locate the original receipt before trying to fix access by buying the channel again.
The box is a separate hardware choice
An Apple TV box is one device capable of running the app and other applications. You do not need to treat the box and the Apple TV subscription as the same product. If the app is already available on a compatible television, compare the experience there with the hardware features you actually need. On some TVs, purchases are not supported in-app even though previously acquired content can be watched after signing in.
Questions about this guide
Does an Apple TV subscription include every channel in the app?
No. Apple states that third-party subscriptions and store rentals or purchases are separate.
Does a TV without an in-app purchase button necessarily lack playback?
No. Apple says some supported smart-TV apps cannot transact; eligible purchases can be made on another supported device and watched with the same Apple Account.