A mobile operating system is the core software platform that manages a smartphone or tablet and provides the environment in which mobile applications run. It controls device resources, security, storage, connectivity, notifications, and access to hardware features. Android and iOS are the two major mobile operating systems used by smartphones today.
The mobile operating system determines how an application is built, tested, distributed, and integrated with device functionality. When creating a mobile app, businesses need to decide which operating systems they want to support. Building an application for both Android and iOS can make it available to users across the two major mobile platforms.
A company creates a mobile application for both Android and iOS. Although the app provides the same core services on both platforms, each version runs within its respective mobile operating system and follows its platform requirements.