That's where many businesses go wrong. The businesses build a prototype first without performing any form of research of the market.

Sure, it begins with an idea but every idea comes from a source, a problem. Whenever you come up with an idea, it has the target audience by default.

I mean, it's the target audience who inspire entrepreneurs to come up with a solution to their problem.

You observe people, you observe what they're struggling with, and then find a solution and sell it to them.

Since you have already developed an app, you definitely will have a target audience. Every idea has.
I mean it begins from there. I'm not sure how you developed an app without deciding who's gonna use it.

If that isn't decided, how do you develop the app features?

Please help me understand more about your app, so that I can help you cultivate a strategy to find a niche or target audience.