Realised that was a bit snarky of a comment, I'm using a a modified version of Cocos2dx .v4.
It took way longer to create than if I was using Unity, but its a great solution for a small and performant end product. I was able to get Kanso down below 100MB and will run on a total potato. Something I highly doubt I could do in Unity without some serious effort.
Xcode, I use Xcode for the most part and visual studio for the Steam version.