Thanks for your feedback.

I thought tapping the title and going to the article in the comments page could be counter-productive if one slightly missed the back arrow. I need to give it a thought again.

It's a good idea to make the entire comment tappable instead of just the small button. I haven't tested the app on a physical iPhone 6 yet.

I'm not sure about the arrow. It still takes up less space than the navigation bar and immediately goes away.

Main and comments views are basically a table view with UITextViews displaying attributed strings. I did my best to convert HTML to attributed string in no time, so I'm surprised by the stuttering as you scroll. It doesn't occur on my iPhone 5s. I need to investigate that.