Samsung Kies is one of the must installed applications for Samsung Galaxy S4 users. It is Samsung’s desktop software to transfer music, contacts and photos, update software and sync wirelessly from your Samsung phone or tablet. Something likes iTunes for iOS devices. And it is available on both Windows PC and Mac OS. Besides, it also provide Galaxy S4 USB driver for the use of Odin software for those who like to root, install custom ROM on their Galaxy S4.
Personally, I seldom use Samsung Kies because I use Titanium Backup to backup (and restore) my applications and data (you need root access for that). For those who do not want to root Galaxy S4, Samsung Kies will be a good application to backup and restore your data. You can also sync contacts with those of Outlook, Google or Yahoo. Good for those who still using Outlook. Besides, it can help to upgrade Galaxy S4 firmware. And provide emergency firmware recovery tool when you need it. Yes, Samsung Kies will be your last resource before sending Galaxy S4 on emergency mode to Samsung Service Center.
Download Samsung Kies here.