Really, this. And this is the problem that I have also with WhatsApp: i lost all my messages when transitioning between Android to iOS since the backup of Andro

Really, this. And this is the problem that I have also with WhatsApp: i lost all my messages when transitioning between Android to iOS since the backup of Android (that is just a dump of the database) is not compatible to the one of iOS. At the other side there is Telegram, where the conversation are saved on the cloud, which is great, but everyone can delete or edit a message even years after it was sent! And thus even on Telegram you need backups (with is inconvenient, but can be avoided with a script that exports all your conversation scheduled to run every once in a while) I would actually use Signal (or whatever other application) if they would have a simple way to export and also import messages. Best thing would obviously be to make a standard interoperable, at least shared by open source applications, like is done with the mailbox format for emails, so you can take your chat, export them, and import them on another system if you want to migrate from one to another.