Hiring a CloudKit developer is beneficial for seamless iOS and macOS app development. They can leverage Apple's CloudKit technology to provide secure, efficient cloud solutions, ensuring data is synced across devices. They can handle authentication, private and public databases, and asset storage, reducing the need for server-side programming. Their expertise can lead to improved user experience with features like real-time updates, data backup, and offline usage. The developer's ability to navigate CloudKit's scalability also allows the app to grow with your user base, ensuring consistent performance. Altogether, they can optimize your apps' functionality and user satisfaction.