App development: App development is the process of creating software applications that run on mobile devices like smartphones and tablets. This can involve designing the user interface, developing the functionality, testing, and deploying the app to app stores like Google Play or the App Store.

Web development: Web development is the process of creating websites and web applications that run in web browsers. This involves designing the website layout and user interface, developing the website's functionality using programming languages like HTML, CSS, and JavaScript, and deploying the website to a web server for hosting.

UI/UX: UI (user interface) and UX (user experience) are two related concepts in design that focus on how users interact with digital products like websites and apps. UI design involves creating the visual layout and design of a website or app, while UX design focuses on creating an intuitive and enjoyable user experience by optimizing the user flow, navigation, and overall usability of the product.