Hard to give specific advice without knowing what the app is. If you’re interested in going down the sales route I can assist as I have sold several apps and developed 100s for clients.
On the revenue side, I am assuming your already tried a freemium model with in app purchase as well as ad supported? Do you capture users email address? Are you utilizing push notifications properly? How many DAUs?

We'd need to see it or try it.

Hi,
I completely understand how you're feeling. A friend of mine and I created a website that brought in nice profits for a while, but the busier we got the less time we had to work on it, and the profits started going down. We hated the fact that the website had such potential that wasn't being utilized fully.
I'm happy to see if I can help and won't charge for an initial introduction call (https://clarity.fm/assafben-david/probable653). I've always been pretty good at monetizing existing businesses, so I see this as a nice challenge. Of course, I would need to know more about the app.
Good luck and well done for creating something that generates a profit - this in itself isn't always an easy feat.

Hi! It sounds like you've accomplished the hard part -- which is developing a product and finding the elusive "product-market fit" that many businesses never achieve. I've been involved with several companies that have been in the same position that you ate in now -- the product is ready to go, but the sales process hasn't had a chance to scale properly.

I believe that this requires a team that is solely dedicated to executing on a sales plan for your business to grow your revenues from the current level to something exponentially higher. Though I don't know much about your app right now, I suspect that a commission based sake model is not the right model at this stage -- really any revenue that comes in you will likely want to recycle back into the sales engine to keep the business growing for the next few years.

I'd love to learn more about the opportunity and to discuss over the phone what you have in mind for a potential partner. I would not charge for this call if you request me at https://clarity.fm/vijayrao/freeadvice

My experience with this is so easy (I can solve in minutes) if you call me I can help you with your questions plus more for just 1.67 a minute

What you need a monetization specialist also known as a pricing professional. There are people who are 100% specialized in this skillset for a reason. It's hard. If you want to learn to do it yourself, I can recommend some books. Otherwise, you can going to need to speak with me or a peer with the same skillsets. Anyone recommending Freemium as a model likely does not have the ability to help you. Happy to discuss further, without understanding the app, I can't provided direct recommendations.