Earlier quoted context omitted.
The author noted that it was his fifth app, so it's likely that he had the knowledge and patterns/libraries/boilerplate etc. already in place.
I think it's perfectly fair to say "this took me an hour", but statements like this always come with history. Dude probably spent at least hundreds of hours getting proficient at programming, app design and iOS development specifically. I don't know if that's misleading, encouraging or simply talking to a specific target group.
> It always reminds me of the story about the woman who approached Picasso in a restaurant, asked him to scribble something on a napkin, and said she would be happy to pay whatever he felt it was worth. Picasso complied and then said, “That will be $10,000.”
> “But you did that in thirty seconds,” the astonished woman replied.
> “No,” Picasso said. “It has taken me forty years to do that.”