AASync is a Secure File Backup, FTP-SFTP Folder Synchronization utility.
Even if you're new to FTP, it's easy to use and allows local as well as remote backups over an FTP or SFTP connection. The advantage of it is that while you're working, in can automatically backup your files to a remote server or another local disk meaning you don't have to worry if your hard drive fails for some reason.
When you start AASync, you need to specify the files and folders you want to backup. Once done, any changes that you make to these files will automatically be detected by AASync and it will make instant backups. AASync also uses encryption to protect your data during and after transfers. If you don't want it to kick-in every time you make a change, you can just schedule backups instead. You can also configure it to ignore certain file types or folders so that you can work in peace.
Although AASync is free for syncing between local folders including external hard drives, remote syncing requires purchasing a license. However, remote syncing is worthwhile as you can also access your backup files from anywhere and soon to be added is iPhone support. The only slight drawback of AASync is that it does take quite a long time to make initial backups but once you've done that, subsequent backups should be fairly quick.
Simple, easy and effective, AASync is an ideal way to ensure your files are constantly backed-up while you work.
