I released an app a year ago and I'm struggling to get users

I don't have much of a marketing budget as I am fully bootstrapping this app (I just use money from savings when I can and I'm not sure when/if I'd even be able to get funding as I have no prior business experience and acquiring funding seems near impossible right now).

From the marketing I have done which is primarily advertising on Meta products such as Facebook and Instagram, I get a bit of reach but hardly any downloads. Granted my campaigns are usually around $50-100 only but I still am lucky to get 2-3 signups from a campaign of this budget.

I would love some inspiration and tips and tricks to increase the rate that I can acquire new users and get them to also invite their friends on to the platform! Any advice is most welcome.

Some more information on the app: In a very brief description of the app - it's called Solance and it is designed to be a social media platform where you can follow friends, family, colleagues, or even other users you don't know, and interact with each other through the songs they have recently been listening to.

I am always refining the app and adding in new features, but I can only release updates every month or so as I work on Solance on the side and work full time.

Here's the link to my website: https://solance.app (I still need to update the website some time soon with additional features and updated images of the app)

A social media app based on music has a narrow audience anyway, in my opinion: young people that still find music important enough to make it a thing. For me (old), music is something to listen to, but certainly not be obsessed about.

I find it an amazing success you have so many users to begin with! That signals that there is a market, you "just" have to focus in on it a bit more. What is the common factor of your current users? Market to that demographic. Leave the rest (for now).

The lesson going forward may be to talk to users earlier though, so you know what to build on earlier.