Christian Ghisler has been developing Total Commander for 27 years, since 1995. While he didn't invent the idea of two-pane file manager and more or less reimplemented Norton Commander in proper graphics-mode GUI, he added so much more to it over those three decades that it wouldn't be right to call it a copy of NC; moreover, he didn't ship it for free, he priced it at the same $49.
What the author of Copy, sorry, Double Commander does is pure and simple dumping. It's like standing next to a bakery and giving away same cakes for free. Does that feel right?
I wonder how the development of Double Commander is backed financially.
>Double Commander is absolutely free <,comma> open source software.
Implies free as in beer as well, unless someone rubs my nose into the price stated somewhere on the website.