Feature Suggestions
Hey man, was playing around with the app and it overall seems good. It's a little laggy but I guess you're still figuring it out. It's a good idea but I've got some suggestions I'd love to see happen.
Firstly, I'd like to see the ability "transfer" my Duolingo Hindi knowledge to the app. Maybe an initial test of the language to get an overall rating of the user. This way if I'm halfway through the Hindi course on Duolingo, I don't have to start all over on bhasha.
Secondly something that I think you should do differently is teaching the alphabets. Duolingo starts off the course with a little mix of both basic characters and words. But bhasha immediately starts off with words. I think just a few lessons/courses on alphabets should be necessary. Learning the alphabets is behind a paywall, I understand that you're seeking for paid users, but I don't think that's the best way. Alphabets should be the first thing someone learns. I think you should definitely leave the speaking aspect behind a paywall but not the character learning.
Everything else seems okay. I don't know about other languages but Tamil could use some improvements as well. I assume you used AI to create the courses? I can help a little with Tamil, let me know if you need help. Overall I think it's good start.
Good luck