A Utility is a small application designed to perform simple but important tasks. This usually includes system programs such as archivers, file managers, optimizers, and uninstallers.
But recently, this term has also begun to be used to refer to common applications that are installed from Play Market. These are services for deleting temporary files, programs for working with documents, and other useful add-ons. In other words, a utility is an important application that, at first glance, performs very simple tasks. For example, it deletes installed programs or cleans up garbage.