Typography of Apple Inc. different other typefaces, notably FF DIN (used in the UI of the Camera app in iOS 7 and above), Helvetica (used in the UI in iOS 6 and below), Helvetica Neue (used in the UI of iOS 7 and OS X Yosemite), Roboto (Google's new UI typeface), and Univers (used on Apple's early keyboard designs). It was widely speculated that San Francisco was going to be the long-awaited font that Apple had reportedly been developing for independent use in their products, and the font's name was leaked in November 2014 when the WatchKit SDK was released to developers. On June
Helvetica stroke widths within a glyph. Nimbus Sans L, a version of URW's Nimbus Sans spaced to match the standard Linotype/PostScript version of Helvetica, was released under the GNU General Public License in 1996, and donated to the Ghostscript project to create a free PostScript alternative. It (or a derivative) is used by much open-source software such as R as a system font. A derivative of this family known as "TeX Gyre Heros" has been prepared for use in the TeX scientific document preparation software. FreeSans, a free font descending from URW++ Nimbus Sans L, which in turn descends from Helvetica.