I know you asked a closed question, but would you consider Xamarin? This way you would earn more transferable skills (C#, multi-platform toolkit, etc.) and not

I know you asked a closed question, but would you consider Xamarin? This way you would earn more transferable skills (C#, multi-platform toolkit, etc.) and not lock yourself in one platform. You could also develop in raw C++ and have only a thin ObjC wrapper over it.