Hello There,
Let me get to the basic here:
For most of the features like music voice etc we have to use VOIP services and 3rd paty integration.
For the other part, let us know the basic of app that on what principal it will work so that we can accordingly get the best out for you,
Also, as far as animation and effect is concerned, what would you like to have in here: Should we add high level or just normal as being education app, normal effect would be sufficient.
I would like review all of your project related thoughts and Ideas, Possibly in the documented forms, as then it would be an easier task for both the parties to freeze on the requirements and stay on the same page throughout the project development.
Once we have all details we can move ahead easily.
Thanks!