Mobile app development is the process of creating software applications that are designed to run on mobile devices, such as smartphones and tablets. Mobile app development involves several stages, including conceptualization, design, development, testing, and deployment.

Mobile app development can be divided into three main categories:

1. Native app development: At CodTag, Native apps are designed to run on a specific mobile operating system, such as iOS or Android. Native app development requires specialized programming languages and development environments, such as Swift or Objective-C for iOS, and Java or Kotlin for Android.

2. Hybrid app development: At CodTag, Hybrid apps are designed to run on multiple platforms using a single codebase. They are built using web technologies such as HTML, CSS, and JavaScript, and then wrapped in a native app shell that allows them to be distributed and installed like a native app.

3. Web app development: Web apps are designed to be accessed through a mobile device's web browser. They are built using web technologies such as HTML, CSS, and JavaScript, and are typically hosted on a web server.

Mobile app development can be a challenging process, and there are several tools and frameworks that developers can use to make the process more efficient. Some popular mobile app development frameworks include React Native, Flutter, and Ionic.

Mobile apps are an essential tool for businesses and organisations that want to engage with customers and improve their bottom line. A well-designed and optimised mobile app can provide a convenient and personalised experience for users, and can help businesses to attract and retain customers.