[yokuze]

Do you have Settings > Apps > App Store > (Automatic Downloads) App Downloads turned on?

I noticed apps appearing on my Home Screen I’d never heard of before. Turns out with that setting and Family Purchase sharing turned on, every time my wife installed a new app, it installed on my phone too.

That may not be your exact scenario, but I wonder if turning off that Automatic App Downloads setting (if enabled) changes anything. Could give you a clue, if so.

[_-x-_]

App Downloads and App Updates are both turned off. I don't have anyone else's devices on my account, just me. Thank you for the suggestions though!

[wallst07]

Even with auto downloads turned off, does it show up in your app library or as a purchased app?

You can still have a app library with apps that "should be" downloaded, what happens if its removed from that list?

[trinsic2]

Speaking of which. Under Cellular Data There is a setting right below Automatic Downloads call "App Downloads". I wonder if that works independently of whether or not Automatic Downloads is off. The only options are: Always allow, ask if over 200mb and always ask.