Android is a mobile operating system developed by Google that is used by a wide range of smartphones and other mobile devices. Android is an open-source operating system, which means that its code is freely available and can be modified.
iOS is a mobile operating system developed by Apple Inc. that powers the iPhone, iPad, and other Apple devices. iOS is known for its simplicity, user-friendliness, and integration with other Apple products and services.
Cross-platform development is a software development approach that involves creating apps or software that can run on multiple operating systems and platforms, such as iOS, Android, and Windows. This approach is typically used to save time and resources.