I've been looking around to find a good, privacy respecting way to sync my messages between phones. I decided I'm going to use SyncThing so I don't have to mess around with a server. The only problem with this is that I haven't been able to find any apps that work on modern Android that routinely backup and import messages from a file/folder into the messages database. Does anyone know any app that might do this?
Same. This is exactly what I do. I'm on my 5th Android phone since 2009, and I still have all my call logs and SMSs going back until then, because I backup from my old phone and restore to my new phone on every upgrade.