macOS (previously Mac OS X and later OS X) is a series of proprietary graphical operating systems developed and marketed by Apple Inc. since 2001. It is the primary operating system for Apple's Mac computers. Within the market of desktop, laptop and home computers, and by web usage, it is the second most widely used desktop OS, after Microsoft Windows.

iOS 13 introduces a bold new look, major updates to the apps you use every day, new ways to help you protect your privacy, and improvements across the entire system that make your iPhone even faster and more delightful to use.