I am currently helping someone who has experienced large amounts of data being transferred over her DSL connection. After long research (via IRC support) I found out that her iPhone is obviously sending lots of data, i.e. several hundred kbyte/s, as soon as she connects it to her home network. The iPhone itself seems to work fine.

To find the culprit responsible for these huge amounts of data I would probably need to find a way to measure how much data all connected applications are sending within a specific interval.

As I do not use an Apple mobile device myself I am not familiar with iOS. Are there any possibilities to get information about the network usage of specific apps, either natively or with the help of a third-party application that is for free or at least offers a free trial version?

  • Please ask for this feature at Apple so they'll consider adding it. The more people that ask the more likely it will get added apple.com/feedback – gman Feb 20 '16 at 5:40

You can do this with Onavo Count

Onavo Count monitors and analyzes all types of mobile data and phone use. This includes background, foreground, and Wi-Fi use.

Onavo Count

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    This app is no longer available from the UK or US app stores. – Deanna Feb 6 '16 at 22:28

iOS can do this natively under network usage. Just reset the stats with the bottom button and review later.

Go under Settings > Cellular and scroll down. You will see what each app installed on her device uses as far as data. (This is on iOS 7)

We're looking for long answers that provide some explanation and context. Don't just give a one-line answer; explain why your answer is right, ideally with citations. Answers that don't include explanations may be removed.

  • For previous versions, go Settings >> General >> Usage >> Cellular Usage – Pacerier Oct 7 '15 at 8:18
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    This option is labelled "Mobile data" in the UK. It's not much use for apps that only use WiFi though :-( – Deanna Feb 6 '16 at 22:29

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