UILabel and fonts
Here's a list of the fonts available on iOS:
http://iosfonts.com/
If you want to use the system font, just use [UIFont systemFontOfSize:]
or [UIFont boldSystemFontOfSize:]
You can find all fonts here:
list of iPhone fonts
For Helvetica you would do:
In Objective-C:
UIFont *helvFont = [UIFont fontWithName:@"HelveticaNeue" size:14.0];
In Swift:
let helvFont = UIFont(name: "HelveticaNeue", size: 14.0)
So the regular one would indeed by HelveticaNeue