Don't even bother
Don't even bother: they use a Wondershare Video Converter Ultimate to sell! I own that marvellous piece of software (actually I bought all their video converters, no matter if Filmora, Ultimate or Simple converter) for my mac and is working brilliantly. And then comes next question: how in the world do they sell a modified application (because is modified from the original wondershare one) and sell that? I would really like to know.