The primary benefit of cross-platform app development is the ability to create applications that run on multiple operating systems from a single codebase. This approach saves time and resources by eliminating the need for separate development teams for each platform, such as iOS. and Android. Additionally, it enhances the reach of an application by targeting a wider audience, increasing its potential user base. Developers can also streamline maintenance and updates, ensuring that all users receive the same features and improvements simultaneously. Overall, cross-platform development maximizes efficiency and reduces costs.