iOS 26.2.1 cellular data drain

[Telesmurfen]

As many others, I’ve experienced a slight increased battery drain, but worse than that, is the insane cellular data drain. Just a couple of days after installing 26.2.1 (end of January), I got a message from my carrier that I had reached my limit of 200GB cellular data. As it was the end of the month, I didn’t think much of it. But, today (February 6th), I got the same message!! There is NO WAY that I could’ve used 200GB in less than a week. I’m connected to Wi-Fi most of the day, and only use cellular data occasionally.
Is anybody else experiencing the same thing?

 

[HouseLannister]

Make sure WiFi assist is turned off in Cellular settings if you are on a metered cell plan.

 

[Telesmurfen]

This is one example… phone in my pocket, background activity turned off, no music playback or anything… down 1GB in 6 minutes… checked what apps that used my cellular data recently, and no apps had (as far as I could see) used any data…

 

[cynics]

Make sure to reset cellular data statistics in the Cellular section of Settings. This makes its easier to see changes over short periods of time. Sometimes data usage might be listed under something else, for example a lot of data can be listed under a VPN app vs the apps using the data. A reset will make something like that obvious.