In my experience the 10 oz bottle of KAIO went A LOT further than the 16oz bottle of 360, but I'm pretty sure I was using to much of the 360 (it was my first time or two with the DA).
I don't think of these products as interchangable anyway. The KAIO is a chemical cleaner with light protective added. From what I've read, it needs to be topped with something else for real protection.
The 360 on the other hand does have abbrasives for some "mild" paint correction and longer lasting protection.
I now use the KAIO on windows, wheels, chrome, and lots of other things.