I used to help teach the iOS Development class at NYU - I was having this conversation with the professor who's teaching it again next year and we talked about

I used to help teach the iOS Development class at NYU - I was having this conversation with the professor who's teaching it again next year and we talked about this specifically for new students. I think that you should learn Swift because it is where most app development will be heading in the future and far easier to pick up than Objective-C. The main disadvantage currently is that the whole corpus of knowledge about iOS development is steeped in Objective-C. My advice is to learn Swift and develop in Swift, but know enough Objective-C to be able to translate it to Swift and read documentation written for Objective-C. Eventually as the corpus of knowledge in iOS development grows for Swift, this won't be as much of an issue.