If you've decided to start an app like Clubhouse, you will need to
have powerful back-end support. It ensures that there is smooth and
uninterrupted communication between users. If you target a worldwide
audience, it is recommended that you use Elixir, .NET, Ruby, and
C++.
However, if your user base is smaller and more local, you can have
your back-end specialists work with Node.js, which is cheaper and
simpler.