Basically just the title, delete this if it’s not the right community.
I hate iphones and apple stuff for obvious reasons. But I am forced to use it to some degree. I just want to get a community consensus on any problems with signal being shared, seen, monitored, or sent to apple servers or icloud while being used on an iphone.
Terms like “safe” and “private” are not binary.
Are the contents of your Signal conversations on an iPhone private with regard to mass surveillance conducted by governments and ISPs? Probably. Apple uses security and privacy as marketing points, and there are a whole lot of people looking for vulnerabilities in its products who are incentivized to disclose them (possibly with a delay for patches). Signal itself takes steps to prevent data leaks to less secure parts of the OS and other apps.
Would your conversations remain private in the face of a targeted attack against your device by a nation state willing to spend a significant amount of time and money when you’re using Signal on an iPhone that’s presumably used for purposes other than secure conversations with a small set of people you know? Almost certainly not.