I occasionally listen to the FM radio (obviously through earphones) on my mobile phone (Sony experia) whilst I'm doing a particularly boring process at work .... does listening to the radio on a mobile phone use data? Just wanted to clear this up - if it does, I will switch to using my little "sports radio" rather than listening to stuff via my phone. Thanks, Chox.
It depends on the app you are using. Does is say FM but in reality stream a station that normally broadcasts on FM over the web, or does it genuinely use the airwaves ? A clue would be, does it insist it needs the earphones plugged in, in order to use them as the aerial ? Or read the app description.
The app says "FM radio", but you can't listen to it unless you have earphones plugged in. Have turned off wi-fi and data, and it still works .... does that mean I can listen to the radio through my mobile and not use up data?
if you go in to your "data usage" page from the settings screen, you can rack how much data you are using and set up an alert to tell you when you get near your limit