iPhone · Research guidance. Instructions are based on publisher guidance; a UK IPTV account was not tested on this platform.
Both can reduce occupied space
Apple offers Offload App and Delete App in storage management. Their similar placement can make them look interchangeable. They retain different information, so the choice should follow whether you want to preserve the app’s documents and data or deliberately remove them.
Offloading keeps documents and data
Apple says offloading frees storage used by the application while retaining its documents and data. The remaining icon can support reinstallation. This means offloading should not be described as wiping every local setting or creating a completely fresh account environment. The retained state is part of its purpose.
Deletion has a broader local consequence
Apple describes Delete App as removing the app and its related data, and warns in troubleshooting guidance that stored app data may be lost. Before choosing it, understand any local downloads, preferences or access information you would need again. Do not assume the website’s remote account or paid entitlement is stored only on the phone.
Restoration still needs availability
Retaining a cloud-marked icon does not guarantee that the app remains downloadable for the device and account forever. Check the legitimate store listing before removing a working app you depend on. Do not replace an unavailable app with an unverified similarly named file as an improvised recovery step.
Choose according to the task
For storage housekeeping, retaining app data can be useful. For a later troubleshooting step, the publisher’s actual instructions may specify another action. State exactly which was performed when asking for help. The phrase reinstalled the app hides an important difference if one path restored retained state and another removed it.
Questions, answered
Does offloading erase all app documents?
Apple says documents and data are retained.
Does deleting an app cancel the remote service account?
Do not assume so. Local removal and the service relationship are separate.