No one knows for sure how much of the app is left after deleting.
Eh … no.
As with any and every app on iOS, deleting the app removes the app and all its data. Have you never deleted anything from an iPhone? Did you not notice the confirmation / warning that popped up? Did you not read it?
If the fear is that TikTok hacks the kernel and so stays resident regardless of what iOS tries to do with it … well, again, that’s the kind of thing that government actors could do; but only
would do to the sorts of people they’d target with drone strikes or bone saws. Because, if they did it indiscriminately, it would be instantly discovered and thereby rendered useless — and these thing ain’t cheap. For that matter, a drone strike is assuredly cheaper — and you don’t want to know how expensive one of those is.
Well, yeah. Android is, by intentional design, a complete free-for-all. There aren’t any guardrails, and the paint on the lane markers is rarely refreshed.
The iOS development tools give developers access to lots of stuff that might seem questionable — but, if you actually
use any of that stuff, good luck getting past the AppStore review process. Abuse it, and it’s a matter of time before you’re found out and banned. Too many people abuse it — like the whole “read your clipboard for no good reason” fiasco — and it gets neutered for everybody.
And there is no way on iOS, short of jailbreak or other exploit, for an app to escape its sandbox.
What do I mean by “might seem questionable”?
For example, I’m assuming that TikTok asks for and generally receives full read / write permission to the Photos library. Which means that it could upload all of your photos and videos to the TikTok servers, at which point the owners of those servers (that is, the Chinese government) could do whatever it likes with them — look through them, use AI to look for “incriminating” photos, manipulate them to create blackmail, whatever. And the write access means that they could delete photos they don’t like — or even plant, say, a photo of somebody holding up a blank piece of paper (which, apparently, right now, is one of the worst acts of political protest one can commit in China) for a Chinese officer to “discover” and use as pretext to ship you off to a reeducation camp. (Or maybe elicit a bribe; I understand that’s much more common.)
So, yeah. Get TikTok off your phones. Most especially if you’re a Chinese national or have ties to Chinese nationals you care the slightest bit about.
But … once it’s off your phone, it’s over. There’s nothing more it can do at that point.
b&