Myriad (typeface) Apple typography"), but it has now been replaced by San Francisco. More recent iterations of the iPod (from the iPod photo onward) used Podium Sans, which has similarities with Myriad (as opposed to Chicago), for its user interface. However, the iPod Touch and iPhone 3G replaced Podium Sans with Helvetica, which became the system font for OS X starting with OS X Yosemite. Myriad was included with the third generation of iPod. Adobe ships a large subset of the Myriad Pro family with a number of their products, including Adobe Reader. Myriad is also used in the corporate identities of
Helvetica add subtle differences. Substitute Helvetica designs that have survived into or originated during the digital period have included Monotype's Arial, Compugraphic's CG Triumvirate, ParaType's Pragmatica, Bitstream's Swiss 721, URW++'s Nimbus Sans and Scangraphic's Europa Grotesk. Berthold itself responded to Helvetica's popularity with Akzidenz-Grotesk Buch, effectively a Helvetica clone. Besides Helvetica imitations, Helvetica was available in custom derivatives with unusual special-order characters for many years, notably a straight-legged 'R' and round-topped 'A'. CNN uses a custom derivative, "CNN Sans", which has a '1' with a base. URW (later URW++) under the leadership of Peter Karow produced a modification of Helvetica called