PhoneTrans removes many of the barriers that are built into the backup, sync, and restore process for your iPhone. This alone makes it an invaluable app, but combined with a well-made interface, and speedy, responsive upload and download speeds, it is a great tool that you will find yourself using far more often than the built-in transfer tools provided by Apple in iTunes.
PhoneTrans is designed to move files between your computer and your iPhone. There are few menus and the software does almost nothing until you have loaded your phone by connecting it to the computer. It is compatible with all versions of the iPhone, and once it has read the device, will allow you to move files to the iPhone as it if were an external hard drive; but in a way that ensures they are accessible within Music, iBooks, and Photo apps. In our test, we were able to move 100 files in less than four minutes between device and PC, some of them rather large. With that it seems to be nearly as fast as iTunes, but without the syncing requirements that can be so frustrating.
With a clean interface, fast response times, and the option to move files in both directions between your iPhone and PC, PhoneTrans is a powerful tool that almost any iPhone/PC user will be happy to have. While it is not a full replacement for iTunes (and iTunes installation is required to use it), it definitely enhances transfers.