Signal doesn't support backup exports on iOS
community.signalusers.org
community.signalusers.org
It’s the thing I dislike most about Signal. Sadly, there aren’t any good alternatives either.
Anyway, this related comment thread notes similar impressions of the Signal team:
https://news.ycombinator.com/item?id=25686475
> “I've tried to report bugs and talk to developers about this but there's one fundamental problem here - the Signal team fundamentally does not value chat history the same way a lot of people do. They think that destroying all chats is a reasonable thing to do when things get hard - which is the exact opposite to many WhatsApp users, which deeply value images and texts sent to them on that platform.”
> “It's not a technical issue - they just think you're wrong when you want to keep your conversations.”