There are 1 repository under sms-backup topic.
Backup Android SMS, MMS and call log to Gmail / Gcal / IMAP
Simple android application to extract SMS from device into CSV file
SMS/MMS backup app (this is a mirror, main repository is https://gitlab.com/hydrargyrum/epistolaire)
This little script helps to import messages from other mobile OSs to Sailfish OS. The first version only supports Android SMS messages exported by SMS Backup & Restore.
Created an Android application that uses the Gmail API to automatically backup SMS messages to gmail.
Compress Android SMS, MMS and call logs created by SMS Backup