[microtonal]

It uses a different UI on Mac, since the Mac UI was written in Cocoa.

Unlike many cross-platform applications, Transmission integrates seamlessly with your operating system.

The Mac OS X interface is written in Objective-C and uses Growl notifications and dock badging to keep you informed.

https://www.transmissionbt.com/about/

There are many apps that are miles ahead of Linux or Windows equivalents: OmniGraffle, OmniFocus, Acorn, Pixelmator, 1Password, iTerm, Alfred, (Git) Tower, etc.

[jqm]

I thought the UI was a command prompt. At least it has been for me. Shows you what I know:)