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 used Helvetica as the system typeface of iOS until 2015. Helvetica has been widely used by the U.S. government; for example, federal income tax forms are set in Helvetica, and NASA used the type on the Space Shuttle orbiter. Helvetica is also used in the United States television rating system. The Canadian government also uses Helvetica as its identifying typeface, with three variants being used in its corporate identity program, and encourages its use in all federal agencies and websites. In the European Union, Helvetica is legally required to be used for health warnings on tobacco products such as e.g.