[cladopa]

Looks great technically. I am a language nerd as I have worked in multiple countries like China or Austria or the US and I am from Spain.

If you want to sell your app you will need to explain it for humans, like this guy is doing: https://www.youtube.com/watch?v=ROEJe-nBmqQ

You will need to get better at public speaking and telling stories. I recommend going to your closest Toastmasters club.

[alder]

Yes, you're right, public speaking is not really my thing. I'm a tech nerd. I should probably rely on partnerships with other people to help it grow. But the first thing I wanted to find out was if the app is actually useful to anyone other than myself. And the response from this community is encouraging. I also thought about letting content producers publish their content/courses as collections here with restricted access. The app already supports that. It is also possible to realign the transcript to their "gold" transcript. They would have instant Anki cards in multiple languages, and the shadowing practice for their subscribers. I would have users, win-win :) But again I have no idea how to do marketing.