Viewing subtitles on videos (iOS)
Viewing Additional Subtitle Languages
In some cases, additional languages will be available.
Additional subtitle languages will only appear if they are available for the specific item and the language has been added to the preferred languages for the specific device.
To add a new preferred language navigate on the iOS device to Settings > General > Language and Region > Under preferred language order select "Add Language" > Select desired language > Tap "Done" > Confirmation if you want to change the iOS device language or keep English as the default.