BestSync Solution
The best sync tool I ever used
BestSync is one of the best sync tools available at this point. It has
some of the most important characteristics: it is fast, reliable, safe, easy
to use and understand and affordable.
------Reviewed by famouswhy.com
BestSync is an easy-to-use yet powerful and reliable file synchronization
software. It can be used to synchronize file with and backup file to/from
FTP/FTPS server, WebDAV collection, Amazon S3 Bucket, ZIP archive, Net
Drive, USB removable drive etc.
Before synchronization, BestSync makes backup all the files in your computer that will be replaced or deleted during the synchronization . This is the unique and most important option of BestSync while synchronizing from multiple locations. In this way, original files of all stages can be restored easily, So using BestSync instead of any other synchronization software, you don't need to worry about losing file at any updating stage.
FTP Synchronization
Synchronize files with a FTP server, download/upload changed files only from/to FTP server automatically, support FTPS(FTP over TLS/SSL), SFTP (SSH File Transfer Protocol), support compression and encryption while synchronizing file. BestSync is may be the fastest FTP synchronizer in the world. BestSync can download and upload multiple files simultaneously, and can download one huge file in multiple-segments by multiple sessions. And BestSync can resume a file transferring from the last breakpoint to ensure that large files be transferred successfully in definite time. BestSync also supports the FTP proxy server, enterprise users can synchronize files behind the firewall.
WebDAV Synchronization
Synchronize files with WebDAV server, download/upload only changed files from/to WebDAV collection automatically, support compressing and encrypting file while synchronizing file. BestSync is may be the fastest WebDAV synchronizer in the world. BestSync can download and upload multiple files simultaneously, and can download one huge file in multiple-segments by multiple sessions. And BestSync can resume the file transferring from the last breakpoint to ensure that large files be transferred successfully in definite time. BestSync also supports the http proxy server, enterprise users can synchronize files with internet storage behind the firewall.
Amazon S3 Synchronization
Synchronize files with Amazon S3 server, download/upload only changed files from/to Amazon S3 collection automatically, support compressing and encrypting file while synchronizing file. BestSync can download and upload multiple files simultaneously by multiple threads. BestSync also supports the HTTP proxy, enterprise users can synchronize files with cloud storage behind the firewall.
File Synchronization

Keep files the same between branch companies or subsidiary companies by NAS, Shared folder, or USB drive. Ensure that you always work on the same updated files. Supports Real-time synchronization to synchronize files immediately after the files are changed, and can run as Windows Service that need not user logon, this is a feature be suitable for running on server.
Zip File Synchronization

Synchronize a folder with a ZIP file, compress a
folder to a ZIP file automatically with complex filtering conditions. Only
changed files are put into the ZIP file, and deleted files are removed from the
ZIP file. Support
AES (Advanced Encryption Standard) 128Bit/256Bit
cryptographic algorithm to protect the zip file with password.
Continuous File Backup

Automatically backup your critical data to external storage, NAS, FTP, network volume by a flexible schedule. Supports "Volume Shadow Copy" service to copy open/locked file. Supports Incremental and full backups. Flexible schedule can be specified, just setup the task once, BestSync can backup the files reliably and continuously.
USB Synchronization, Outlook Synchronization, Outlook Backup

Synchronize File/Windows Mail/Outlook (mail, contact, schedule etc) between home and office by USB disk with the encryption feature. All you need to do, is to insert the USB disk into the home PC, and all the updated files will be compressed and encrypted to the USB disk. Later at the company PC, when you insert the USB disk, all the updated files will be decrypted and decompressed to the PC!
Web Publish

Publish only changed files to your web site by using the FTP protocol with FrontPage support. Only updated files are transferred to your website, Deleted files are also removed. This substantially reduces synchronization time, and there are no annoying dialog boxes to disturb your work.
Incredible features. Extremely easy to use