This is just what I was looking for to help me learn a new language!
I'm someone who learns best by seeing things, so I really appreciate using subtitles. The ability to click on the subtitles and make flashcards is great. Also, having two lines of subtitles is a nice touch!
It would be better if I could choose whether to see a definition and hear a pronunciation every time I pick a new word, rather than just adding it to the vocabulary list without pausing the audio.