What apps uses most data on Iphone?

Like which ones in general? I only have a little bit of data and still have a week to go but what apps use up the most data? Tumblr, twitter, safari, games, youtube, netflix, facebook, etc… And also, when your at home and have Wi-Fi, does it use your data up or does it stay the same?

Youtube/Netflix uses the most data. You can easily use 1 GB in one day. If you want to avoid data usage try not to watch videos.

Netflix uses the most data by far. It uses a maximum of 560 Kbps or 252 MB per hour.

  • When does data for a iphone from Verizon reset? And what uses up data? I just got an iPhone and I'm getting messages that say that the "usage reset date" is 10/10. Does that mean that is the day my data will be reset? Also, what uses up data? All I've been doing since I got my iPhone is texting and looking at a few things on the internet but I'm always connected to my Wi-Fi.
  • What uses Data on my iPhone? - 1 I've apparently used up 90% of my allowed data that was supposed to last till the 15th. I don't have a computer so I use my phone for pretty much everything. I obviously have to cut back but I don't wanna just turn off my phone and keep it off for 3 weeks. I use FaceBook, YouTube, Tumblr, Chrome, a web proxy, iFunny, and I think that's all the APPS I use. I also listen to music on my iPhone, do I have to stop using that as well?
  • What uses data on an iPhone? So I just got my iPhone, and I have a 1GB Family Share Plan with my dad. He said to be careful about going over the data limit, or Verizon would end up charging us extra… So what uses up the data on the phone? I know that if I'm connected to wi-fi it won't be affected, but if I go on Safari or YouTube using 4G, how much will it take? Can someone tell me what exactly effects the phone's data usage?
  • What uses data on an iPhone? - 1 So basically, I'm totally clueless on these kind of things and I've been looking at the plans for iPhones, and I found one that said unlimited 4G data. What on earth does that mean! Also, I hear people say " Oh, I went over my data plan and ***." Since I have no idea what uses data could you please explain? Good grief, I sound really dumb…