Mobile app development is the process of creating software applications designed to run on mobile devices, like smartphones and tablets. It involves designing, coding, testing, and deploying apps for platforms such as iOS (Apple) and Android (Google). Developers use programming languages like Swift for iOS and Kotlin or Java for Android, along with tools like Xcode or Android Studio to build freecine pc apps. The goal is to provide users with a functional and engaging mobile experience, ranging from games and social media apps to productivity tools and services.