I have an iPhone 6s with iOS 10.1 installed. I have an LTE data plan which gives me 9 GB a month, which seems quite substantial for me. Never had a problem with it. Until now. This month, the iPhone consumed the full 9 GB in some 10 days and I keep buying additional packages of 2 GB every two days because it is insanely consuming data for some reason I cannot figure out. Just today, at 7am in the morning, when I checked a data manager app that I installed, the iPhone had somehow consumed 1.14 GB of data, and I had barely used it. Something is clearly wrong here. When I look at Settings>Cellular, I can find the usual suspects that consume a lot of cellular data: Exchange account, Safari, Spotify... but it measures the data since I last reset the iPhone. It does not show me which specific app consumed 1.14 GB today without me even touching the iPhone. I would like to know if there is any app out there that measures the data each specific app consumes at each time, so I am able to identify which one is sucking all this data. I don't need an app that only measures the cellular data which is consumed without identifying the specific apps that consumed such data; that I already have. What I really need is to track down how much data each app is consuming at each time. Thanks for the help.