Deluge

In some operating systems such as Linux, Windows, and Mac, it's not really great for a successful application to publish a new version.

A clear example of this is the climate, a free and open source P2P client that has been specializing in bitraterent downloads for a number of years, which is one of the most used file exchange networks at the moment.

Its interface is clear and easy, and there are many options in it so that you can adjust it as per your requirement in both connection and file handling.

In addition to that, Deluge lets you install add-ons, which can already give more features to those who include the app.