Yes it's custom-built by Signal. I thought it was enabled by default — I don't remember ever turning it on — but it might not be. Here is how to do it: https:/

Yes it's custom-built by Signal. I thought it was enabled by default — I don't remember ever turning it on — but it might not be. Here is how to do it: https://support.signal.org/hc/en-us/articles/360007059752-Backup-and-Restore-Messages#android_enable https://support.signal.org/hc/en-us/articles/360007059752-Ba... ———— > Where can I find the backup file? > Your backup folder is listed under Signal Settings profile_avatar.png > Chats > Chat backups > Backup folder. Use the files app or plug your phone into a computer to go to the folder. > For older versions of Signal, the backup file signal-year-month-date-time.backup can be found at /Internal Storage/Signal/Backups or /sdcard/Signal/Backups