Why are uninstalled apps using using mobile data?

Thanks Captain Obvious! Why people continue to comment when they have absolutely nothing to add or to help is beyond me.

Obviously it comes down to one of two things, uninstalled apps not cleaning up or bad reporting on Apple's part re: usage.

I've replicated issue with clean base install and not installing or removing any apps. And guess what, still shows uninstalled apps using cellular data.

This is false information. I decided to test it. So I reset my Cellular Data statistics on Monday Dec 2nd, and have been monitoring it. Despite having not deleted or uninstalled a single app since the beginning of November uninstalled Apps continue to use data every day. It started out as only 400kb the first day, but just today alone they have use 1.8mb. At this rate it will indeed use gbs before the month is up.

Do you use HomeKit? If so, there seems to be something wrong, I'm watching a long thread in Apples German support communities regarding this for a while now: https://communities.apple.com/de/thread/250667559

Familiar with the HomeKit thread. The excessive data use stopped after I turned HomeKit off on all my family account devices, left for a couple days until they fell off as options in HomeKit devices and bridges, and re-added them. This was shortly before 13.2.2 and seemed to work.

By work, I mean that Apple still attributes traffic to Uninstalled Apps, won’t come clean, and won’t tell what is adding traffic there. It’s not uninstalled apps obviously, I’ve done a tonne of troubleshooting.

Also strange that in restoring my config, the Apple rep who I had on phone at same time accused me of trying to pull something over on them. Yah right, makes sense, that’s why I had Apple pull the diagnostic logs remotely. Another thing that left a sour taste was their support folks inconsistency in acknowledging the problem, or reading back my case log to me so I could ensure it was accurate and not lost in translation.

Would rate the support I received from Apple as less than helpful. It’s too bad. Their last official answer to me was that they don’t know what caused it, they don’t have a fix, but they want me to redo all my troubleshooting steps in case something was missed because it was obvious I was lying to them.

Great way to lose your advocates.

So hopefully my solution may work for others.

Familiar with the HomeKit thread. The excessive data use stopped after I turned HomeKit off on all my family account devices, left for a couple days until they fell off as options in HomeKit devices and bridges, and re-added them. This was shortly before 13.2.2 and seemed to work.

Sounds interesting. Can you please explain that more detailed? Did you drop their access via the HomeKit settings and what do you mean with "options in HomeKit devices and bridges"? I don't get what you mean here or where to see that.

iPhone: Home app > Home icon > Hubs and Bridges (not devices and bridges)

shows you what’s linked to your account in terms of HomeKit controllers

AppleTV (going off memory here): iCloud settings > Homekit > signout

An app that isn't on your device can't possibly use your cellular data.

It seems to be fixed with the most recent update 13.2.2.

Thanks, got it!

Forgot to mention sign out for iOS devices under iCloud options > Home

I have the same problem on iPad yet iPhone is fine. Uninstalled Appa used 900Mb of mobile data in the first two days of January 2020.

what 900Mb of mine went where????