Daily Backup

Good afternoon,
I would like to make a daily backup of the files I have on my cloud ex2 ultra, what would be the recommended way?

Use RAID1 on your cloud and not nessesary for backup. Or just backup to external drive via USB Backup app

On my MyCloud Pro PR4100 in the App Store there two apps Internal Backups and External Backups with the option to back up files/folders in different time frequencies including daily backups to either internal or external drives.

What applications would it be? Have you used them?

They are called literally Internal Backups and External Backups. I use them daily.