An iOS App Development developer designs, develops, and maintains applications for Apple's iOS operating system. They use programming languages like Swift and Objective-C to build native apps. Their responsibilities include analyzing user needs, debugging applications, and ensuring app compatibility with different iOS versions. They collaborate with UI/UX designers to create user-friendly interfaces, integrate APIs and data sources, and conduct testing to identify and fix bugs for optimal app performance. They also adhere to Apple's design principles and guidelines for app submissions to the App Store. Continuous learning about new iOS updates and technologies is essential for their role.