You will have to do market research to identify the right target for your app. What type of content are you offering? Typically this research should have been done before building the app. Market research is the first step in app planning and strategy.
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.
As others have pointed out, trying to find a problem for the solution you have is the wrong approach. It is time-consuming and expensive. Over the last few years, I have been involved in a couple of these experiments, with varying levels of success. But if you have a solution already done, then you have to go through this exercise.
The first approach would be to sit down and write down 10-15 different use cases that can use the technology. Once you narrow it down to 5 or so, start talking a few people in each niche to see what are the issues in them and current players.
Another option is to create dummy websites for different niche markets. You can quickly clone landing pages for each niche. Start sending visitors to it using Google ads, if you don’t have a list. Once you get some leads, talk to each to get an idea of which market is looking for the right solution.