The act or process of creating a mobile app for one or more mobile devices, such as personal digital assistants, business digital assistants, or mobile phones, is known as mobile app development.The process of creating software for smartphones, tablets, and digital assistants, typically for the Android and iOS operating systems, is known as mobile application development. A mobile app store, a preloaded copy of the programme, or a mobile web browser can all be used to access it. WordPress, CSS, C#, and HTML5 are some of the programming and markup languages utilised for this form of software development.