iOS app development refers to creating apps specifically for Apple mobile devices such as iPhones and iPads using Apple development frameworks and tools. Developers typically use the Swift or Objective-C programming languages ​​with the Xcode IDE to build, test, and deploy applications to the App Store. Key considerations include user interface design, data management, performance optimization, security implementation, and adherence to Apple's design and functionality guidelines. Successful iOS app development requires understanding the Apple ecosystem, staying abreast of platform changes, and delivering apps that provide a seamless user experience on iOS devices.