iPhone · Research guidance. Instructions are based on publisher guidance; a UK IPTV account was not tested on this platform.
Confirm the app and connection
If an app works on Wi-Fi but not away from it, check the phone’s connection and that app’s mobile-data permission. The difference alone does not establish a service outage or a subscription restriction. Note the actual app, including whether a website is being used through a browser.
Open the mobile-data list
Apple documents Settings, Cellular or Mobile Data, with controls for apps and services that can use mobile data. Find the intended app and inspect its switch. If it is off, Apple says that app or service uses Wi-Fi only. A browser entry applies to that browser application rather than just the streaming website currently open.
Consider the data plan before allowing
Turning the app on can permit use of the mobile allowance. Check whether that is intended, especially with a limited plan or travel. The device setting does not explain the network provider’s tariff. Apple directs network-service and billing questions to the wireless provider, so do not infer a cost from the switch alone.
Run a small, honest comparison
If you choose to allow mobile use, repeat one brief action in the same app while observing the connection indication. Keep Low Data Mode, account and player choices unchanged initially. Record whether the app reaches its ordinary page or plays the intended short sample; do not describe a menu loading as a complete programme test.
Retain or restore the preference
Return the app to Wi-Fi-only use if that is the desired policy after testing. If no improvement occurs, keep the permission result for a focused support question. An allowed app can still be affected by other network, service or availability conditions, so the setting is one branch of diagnosis rather than a universal repair.
Questions, answered
What does an off app switch mean?
Apple says the app or service uses Wi-Fi only.
Does the switch specify the cost of a stream?
No. The network provider’s plan and actual usage determine billing.