Why is my iphone 5 using So much data? - 2

I get 3gb on my plan, I have a Facebook Messenger app, whatsapp, candy crush and instagram (as does my sister) but she rarely goes over her limit, however i'm able to go over my 3gbs in 6-7 days easily. My last bill was £40 over due to data.

Any ideas what it could be? How can i see what uses a lot of the data?

If you backup your data to iCloud then it can easily eat 3GB in 6-7 days. You can set it to only backup to iCloud when plugged into mains power and connected to Wi-Fi. I suggest you try that

Are you and your sister on a shared plan? If so you probably should make sure that your not misinterpreting the phone bill. Basically the best way to know exactly what is using the most data is to try using something like http://www.onavo.com/ which is an application that will tell you what apps exactly are using how much data.

There's so many things that use data on your iPhone.

Apps running in the background, iCloud backups, weather updates (from the weather app), and much more.

I'd turn off your data when you aren't going to use it, and turn it on where you're gonna. That'll keep you from using so many data.

  • Why is my iPhone 5 using so much data? I just got my iPhone 5 four days ago, and I've already gone over my 200mb data plan. Before I had the iPhone, I had a Blackberry Torch 9800, and I've never gone over my data plan. I use the phone the same amount as I used my Blackberry, and I'm connected to Wi-Fi throughout 90% of the day, and rarely use data. So why am I going through my data so quickly?
  • Why is my iPhone 5 using so much data? - 1 For the last couple of months my data usage has skyrocketed! I have gone from not coming close to my 750 megabytes to having to beg EE to upgrade me to a 1gb package which I'm now on round to going over double! The only thing that has changed since I got my phone was a new 4g sim a few months ago but apart from that I havnt changed any setting.
  • Why is my iPhone 4s using so much data? I'm trying to install iOS7 but I don't have enough data and iphone says I'm using 10 GB after I deleted all my apps and photos and I always delete the background apps so what should i do?
  • Why am I suddenly using so much iPhone data? My contract on my iPhone says that I can use 1GB of internet per month. Normally I use hardly any internet at all, and last month I only used 30MB. However suddenly in only half a month I have used way over my 1GB data and am being charged for it. I have not been using my internet any more than usual and have had to turn my Wi-Fi off to ensure that I do not use any more internet. I do not understand why I'm suddenly using so much data. Does anyone have any ideas?