A desktop application (app) is a program that runs independently in a desktop operating system. Unlike web apps, desktop apps require sufficient hardware resources to function. They are more perplexing to control due to the fact that certain apps are developed for certain environments and configurations. Desktop app testing is a software testing practice that examines the functionality, security, usability, and stability of the app after it is deployed. In desktop app testing, you need to pay close attention to installation as well as uninstallation tests to fully cover the app’s testing requirements.