What is considered using data on iphone?

What kind of apps use data and what are some that don't use up your data? For example apps like Facebook, Tumblr, instagram, are they considered using data? Also when you download music on iTunes does that include data usage?

Anything that connects to the internet uses data. All the apps you listed would use data.

Well any app that need internet for it to work like email, facebook, twitter. Games that don't have multiplayer

Web browsing fb instigram ect. And I think texting. Can't remember

  • Will the IPhone 5 be considered cool and will the price drop? So I want to get an IPhone but its too much money that I can't really afford so I'm thinking of getting an IPhone 5. But will the IPhone 5 price drop once it comes out and will it still be considered cool? Because one the IPhone 5 came out alot of people got the 5 and considered the 4S to be boring.
  • Why's iphone 5 considered best smartphone? What's special about it? What are some features in iphone 5 which is not in other smartphones? I find some smartphones with better processor, camera etc.
  • Using my O2 free mobile data in Spain - do I turn data roaming on or will this charge? It's now free to text and call and use mobile data in Europe and I'm on contract with O2 and have unlimited everything. I'm just wondering if on my iPhone I have to turn data roaming on to get this or will this charge me? How does it work? As when I turn on my mobile data without data roaming the 3G doesn't work until I actually turn on data roaming?
  • Is jailbreaking an iPhone considered stealing? I've heard that it is stealing, since you are not honestly paying for the apps that are in the app store. I have also heard that it is not fair, since others have to pay. I'm confused. Is it considered stealing or not?