I used Duolingo for ~650 days trying to learn Japanese (top 2% supposedly), but once you get that deep into the language, the robotic voices really start to get

I used Duolingo for ~650 days trying to learn Japanese (top 2% supposedly), but once you get that deep into the language, the robotic voices really start to get annoying. It skips over words, pronounces words wrong, and expects you to know new words before it even teaches them to you, and eventually I gave up. I might give the other language apps a try, but long story short, Duolingo doesn't need ai, they need a better speech engine.