
This shared operating system was rebranded as " iOS" with the release of iOS 4. The first iPad was released on January 10, 2010, and ran iPhone OS 3.2, which added support for the larger device to the operating system, previously only used on the iPhone and its smaller counterpart, the iPod Touch. The current public release is iPadOS 16.5, released on May 18, 2023. iPadOS was released to the public on September 24, 2019. It was introduced as iPadOS 13 in 2019, reflecting its status as the successor to iOS 12 for the iPad, at the company's 2019 Worldwide Developers Conference. It was originally forked from iOS, the operating system used by Apple's iPhones, and given a new name to reflect the diverging features of the two product lines, particularly the iPad's multitasking capabilities. IPadOS is a mobile operating system developed by Apple Inc.

Proprietary software except for open-source components IPadOS 16 home screen running on an iPad ProĬ, C++, Objective-C, Swift, assembly language
