this but for German please
He's unaffiliated but just yesterday was raving about it, saying it's the best tool (like this) he's found in years.
Edit: Of course I have no driving reason to learn a language, might be different if I was a refugee trying to make a living
It's not exactly what JIVX is, but it can help you practice with sentences. And I'm currently working on a voice only mode.
It's something I'm still developing so it might have issues.