Many people's first complaint about Apple started with iTunes. When you want to transfer files to your phone, iTunes becomes a bridge between your computer and iOS devices. However, you can't see Apple's simplicity and elegance here. Although iTunes has been revised several times, its ease of use and user experience have always been so bad. If you want to synchronize a file, even if you put aside the complicated interface layout of iTunes, the various instructions and operations in the entire process are enough to deter many people.

Araxis Merge is a professional and easy-to-use visual file/folder comparing, merging and synchronizing program for Windows and Mac platforms, developed by Araxis from Isle of Man. It is suitable for all kinds of professionals who often need to deal with documents and texts to use, such as software engineers, web developers, version and quality control managers, code reviewers and auditors, legal and publishing professionals, and so on.

Syncovery (formerly called Super Flexible File Synchronizer) is currently the most powerful and flexible real-time, automatic synchronization & backup tool, developed by Super Flexible Software from Germany. Since Version 6, it has changed to use now easier to remember and understand new name Syncovery, but its functions are exactly the same as Super Flexible File Synchronizer.

Iperius Backup is an automatic file, data backup freeware with flexible and powerful features, from Italy. It supports backup for multiple types of data (file/folder backup, drive imaging, database backup...), and various backup patterns (full backup, incremental backup... ) on all kinds of storage devices (USB hard drive, RDX drive, NAS, LTO/DAT tape drive, networked computer, cloud storage and FTP server).

FreeFileSync is an open source file/folder comparison and synchronization freeware with visual, clear and friendly UI, specially designed for assisting data backup on Windows, Linux and Mac platforms.