What can i use instead of itunes for my iphone 3gs?

What can i use instead of itunes for my iphone 3gs?

Nothing, apple devices only allow iTunes as a way to communicate with computers.

Nothing, apple devices only support and work through itunes.tight asses

There are some softwares can take place of iTunes.
and this one I google for you can synchronize iPhone music and video to your computer, and seamlessly backup computer files to your iPhone. The iPhone Transfer tool now supports system versions before iOS 5, and is incompatible with iOS 5.
Here is link for detail if you need.
http://www.goshareware.com/itransfer.html