Import 3D models to Android/iOS

Import 3D models to Android/iOS

In which tool should i design my 3D models, so that it would be easy to
import in Android/iOS application.
I thought of using SketchUp and exporting models as collada files and
parsing that file to get opengl vertices and then render them in my apps.
My question is can i do the same in the blender also. And is there any
better way to render the models.