What is the main advantage of creating a UiPath App?

UiPath Apps is a low-code application development platform that enables you to build and share enterprise-grade custom applications that deliver engaging user experiences. Using UiPath Apps, you can quickly build custom business applications that connect to data in any underlying cloud or on-premises system using the power of automation. Apps built with UiPath App Studio provide rich controls for data access and update as well as conditional logic for complex business needs. The underlying UiPath RPA platform provides advanced workflow and business logic capabilities to automate your entire end to end business process.

References:

Apps - Introduction - UiPath Documentation Portal

Introducing UiPath Apps: A Robot-Powered Low-Code Platform