Am I the only one that gets how fucking sus this inquiry is? If they had thought it through like they claim they would have come to all these conclusions on their own both yours and mine.
Literally calling me a fucking pedophile for pointing out the very very high likelihood something like OP is asking about would be used in that way and expressing concern for this literally being their only post.
Maybe you aren't aware but this is a specific issue with the technology you are inquiring about. It is literally impossible what you are asking and the conceivable nefarious uses lead one to that conclusion so you clearly have not thought this through as that has been specifically an issue combatted on this very platform.
Also this being literally your only post on this account is what made me suspicious in the first place.
"Uh hey anyone know any apps I can use to make sure nobody else can screenshot or share the pictures or things I post?"
Probably not. Anything like this would probably be overrun with or specifically designed for people sending shit like CSAM.
Honestly just you asking about this makes me very suspicious of your intent.
That said, of course anything like this is also functionally impossible because a determined person could just get around any sort of measures you are imagining, either natively on the device or just by taking a picture of one device with another.
So either you clearly have not thought this through or are looking for something like this for illicit purposes.
Are cops just the ones on the beat, in uniform, harassing the unhoused, killing protestors or just innocent people caught in the gears of capital? I think most of us would say no, obviously not. There are also detectives and all manner of plain clothes officers, but there are also all the prosecutors, the judges, the DAs etc.
These are all surely also cops, right? After all, we call her Kopmala for a reason. So what about landlords then? Do they not slot neatly into this power structure? Are they not just a half step removed from that legitimized arm of violence that is the state enforcing property rights?
Can your landlord inspect your home? Can they decide on a whim to utilize that violent arm of the state to kick you out on the street if they feel that you are not adequately maintaining - or even better, improving - the value of their property?
In all of these ways the landlord is more of a cop than the DA or the judge.