The typography employed by Apple’s mobile operating system is a key element of its user interface. San Francisco is the name of the typeface family currently used across iOS, macOS, watchOS, and tvOS. It replaced Helvetica Neue as the system font in iOS 9. It is a neo-grotesque sans-serif typeface designed by Apple.
The adoption of this specific lettering enhances readability and legibility, contributing to a more user-friendly experience across devices. Its design features, such as increased x-height and wider apertures, are optimized for screen display. Before San Francisco, iOS typography choices evolved through various iterations, reflecting technological advancements and design trends, including Helvetica and Lucida Grande in earlier versions.
