The purpose for which EndNote has been developed is clear, manage all the bibliography of any project no matter what its content is, and for this purpose it has a clear interface that doesn't stand out due to its design, but does due to how practical it is.
There are multiple applications dedicated to bibliography management, but if there is a program designed for this purpose that stands out over all the rest, that has to be EndNote, the program developed by the prestigious media company Thomson Reuters.
