During what type of testing is the application's user experience the primary focus?

Beta testing is centered on the application's user experience as it involves releasing the software to a selected group of real users outside of the development team. This phase typically comes after alpha testing, where internal testing by the developers takes place. During beta testing, users interact with the application in a real-world environment, providing feedback on usability, functionality, and overall experience. This feedback is vital for identifying any issues before the final release.

In contrast, alpha testing primarily focuses on finding bugs and ensuring the software meets requirements from a more technical standpoint, while unit testing and integration testing concentrate specifically on the functionality and interaction of individual components of the software rather than the user experience. Thus, beta testing is distinct in its purpose of emphasizing the end user's perspective on the application.