iPhone · Research guidance. Instructions are based on publisher guidance; a UK IPTV account was not tested on this platform.
The setting selects an application
Apple’s Per-App Settings lets you choose visual accessibility preferences for an app on the iPhone. The selected item is the application, not the person signed in to a service. If two people use one player app, the operating-system entry should not be assumed to create two separate viewing environments.
The service account remains separate
A viewing profile can affect choices inside a service only when that service actually provides and documents the feature. An iPhone visual preference does not establish such an account capability. It does not grant programmes, separate purchases or enforce a content classification. Those questions must be answered using the service’s real controls and terms.
Browser use makes the scope clearer
If a programme is watched through a browser, the app chosen in iPhone settings is that browser. The setting is not automatically a preference for just one website within it. This distinction matters if a visual change helps one viewing page but also alters other supported content in the same browser.
Plan a shared-device handover
Before lending the phone, inspect both the visual arrangement and the active account. Readability does not establish suitability of the available programmes, and signing into another profile does not guarantee that a useful accessibility preference follows. Check the actual interface state rather than assuming these independent layers are linked.
Describe the desired result accurately
For accessibility help, name the app, iPhone setting and difficult control. For account help, identify the service’s documented profile or sign-in question without including credentials. Keeping these scopes explicit prevents a successful text-size change from being mistaken for a new user identity or a child-content restriction.
Questions, answered
Does Per-App Settings create a service profile?
No. It selects an application for supported visual preferences.
What is selected when viewing through a browser?
The browser application, rather than an individual service account.