AASync is a Secure File Backup, Folder Sync utility. It is simple to use, and it allows local as well as remote backups over an FTP or SFTP connection. Makes it very easy to back up your files to a remote server or another local disk or maintain your website. The sync engine will detect the changes, and copy only the changed files for efficiency. Here are the main features:

The license of this software is Free Trial Software, the price is $29.00, you can free download and get a free trial.