How is Trello iPhone app developed?

Question

I was wondering which libraries or frameworks Trello iphone app is using.

Is it a webapp with JS framework? if yes, which one?

Or is it native? which frameworks for this here?

I'm curious because I really like the UI, and has searched the internet without luck.

Answer 1

I'm on the Trello team and wrote the iPhone app. It's all native code except for the attachment viewer, which is just a WebView. We use RestKit to communicate with our API and help cache the data locally to CoreData. Otherwise, it's just a bunch of custom UIViews and UIViewControllers.