Hi there!
I'd like to use the font 'Helvetica Neue' in my app that I am developing. On Apple Developer System Fonts, it says that it's a preinstalled font. Does this mean that Apple will enable me to download, use and license the font for free? Or do I have to buy and license it externally?
Thanks!
That font is installed on every Apple OS, so you can reference it without bundling it in your app. Just assume that it will be available.
For installed fonts, use the UIFont initializer to refer to a font by name. For example
UIFont.init?(name: String, size: CGFloat)
Use the UIFont familyNames property to get the list of installed font families then get the actual installed fonts with fontNames(forFamilyName:)