Define "Cross-Platform" functionality in OutSystems Mobile applications.

Cross-Platform functionality in OutSystems Mobile applications refers to the ability to develop an application that runs on multiple mobile operating systems, such as iOS and Android. This means that developers can create a single codebase that can be deployed across different platforms, significantly reducing development time and effort. It allows for consistency in user experience and functionality across devices, as users can access the same app features regardless of the operating system they are using.

This capability is particularly advantageous in today's diverse mobile landscape, where users may choose different devices based on preference or availability. Developing for multiple platforms simultaneously helps organizations reach a broader audience and simplifies maintenance and updates, since changes can be applied across all versions of the app from a single codebase.

The other choices, while relevant to mobile app development, do not accurately capture the essence of cross-platform functionality. Creating separate apps for iOS and Android suggests a fragmented approach rather than the unified strategy that cross-platform aims for. Integrating with various web services and optimizing apps for performance are important aspects of mobile development but do not define what makes an application cross-platform.