Yes. Encrypted backups (Pro) are available on the mobile apps as well as web, mobile browser/PWA, APK, and desktop. Path: Chat History Drawer → Profile → Backup Chat History.
The backup is encrypted locally with a password only you control. Venice cannot read or recover it without that password. Create the backup before the data is lost if you want to restore later on another device or install.
For a quick one-off transfer without restoring a backup, ask the chat to create a condensed summary, then paste that summary into a new chat on the other device.