Google apps for both iOS and Android

So I now have both an iPad Mini and a Nexus 7 and I absolutely love both device, I use one just as much as I use the other. But the thing I've noticed is that the design and features for Google apps on iOS just seem a bit more refined and smoother. Before you inform me about the differences in rendering priorities for both each device, why is it that Google apps just feel better on iOS? 

Ok i don't mean for this to sound like I'm talking down to you

It's is that way, because apple as one os spread out through all of thier devices, while android you have all these veriety os on all different platforms