Can you only put music on your iphone with itunes?

So you can't put music files on to the iphone from your computer unless it was bought with itunes?

I believe so as Apple made the iPhone so therefore only iTunes is compatible with it.

No. If you knew what you were doing, you could rip CD's that you own as well.

You can grab music from other sources and drag it onto itunes but yes the only way you can put music onto your iphone is through itunes