How to make Unity 4.3 + RageTools+ RageSpline animations and how to handle them in Xcode?

I'm an iOS developer and I'm trying to make 2d animations with Unity 4.3 + RageTools Pro + RageSpline. I want to integrate the animations into a native iOS application .

In Unity I have different kind of animations, different characters, and I want to control these separately in Xcode. I know how to build unity project to Xcode and I know how to costumize the unity view in Xcode, my problem is that I can't access individually the animations, I can't loop them and I can't switch them in a specific view.

My another problem is that the builded Xcode project from Unity is too large(more than 300 MB). So the question is if I continue to develop the character animation within unity is it possible to handle separately the animations in Xcode ? or I have to find a another solution (use another animation tool, or export from unity into some different file format(fbx) ).

In summary I want to make a simple iOS app with simple animations and i'm looking for the simplest solution.

Thanks in advance for your help.