Whilst Live Backup creates a Backup Database on a SD card in the Tablet, a Manual Backup creates a Backup within the StockMate app, and is stored in the Internal Storage of the tablet.
These manual backups are only accessible via the Manage Database Backups screen, and will be deleted on Restore or when the StockMate database is deleted. To securely store a manual backup see Manage Database Backups below for export options.