There are three main types of mobile apps:

1. Native apps: These are mobile applications that are built specifically for a particular platform or operating system, such as iOS or Android. Native apps are developed using programming languages and tools specific to the platform, and they have access to the device's hardware and software features, which allows for better performance and user experience. Native apps are typically faster and more reliable than other types of apps, but they can be expensive and time-consuming to develop.

2. Web apps: These are mobile applications that are accessed through a mobile device's web browser. Web apps are developed using web technologies such as HTML, CSS, and JavaScript, and they can be designed to work across different platforms and devices. Web apps are easy to update and maintain, and they can be developed more quickly and at a lower cost than native apps. However, they may not offer the same level of performance and user experience as native apps.

3. Hybrid apps: These are mobile applications that combine the features of native apps and web apps. Hybrid apps are developed using web technologies, but they are packaged as native apps and can be downloaded from app stores like native apps. Hybrid apps have access to the device's hardware and software features, and they can provide a better user experience than web apps. However, they may not perform as well as native apps and may be more complex to develop.

The choice of mobile app type depends on the specific needs and goals of the app, as well as the budget and resources available for development.