Helvetica compromises...the spacing has ended up much looser than Miedinger's wonderfully tight original at display sizes but much too tight for comfortable reading at text sizes." iOS used first Helvetica then Helvetica Neue as its system font. All releases of macOS prior to OS X Yosemite used Lucida Grande as the system font. The version of Helvetica Neue used as the system font in OS X 10.10 is specially optimised; Apple's intention is to provide a consistent experience for people who use both iOS and OS X. Apple replaced Helvetica Neue with San Francisco in iOS 9 and OS X El
Sans-serif create rational, almost neutral typefaces. In 1957 the release of Helvetica, Univers, and Folio, the first typefaces categorized as neo-grotesque, had a strong impact internationally: Helvetica came to be the most used typeface for the following decades. Other, later neo-grotesques include Unica, Imago and Rail Alphabet, and in the digital period Acumin, San Francisco and Roboto. As their name suggests, Geometric sans-serif typefaces are based on geometric shapes, like near-perfect circles and squares. Common features are a nearly-exactly circular capital "O" and a "single-story" lowercase letter "a". The 'M' is often splayed and the capitals of varying width, following the