Is there a self-help group for that or do you know people around you that have that problem? If so try to figure out what problems they actually have. You built a product now, but you don't know if there is a market for it. As you say there are already people using other tools. Why do they use these tools? What problems do they have with these tools? Can you build the same tool but solve this one problem they all have with the other tool?
In another post someone gave really good advice, to first create a wishlist for the product you want to build. And start building it when you have 100 people on that wishlist.
Hope you can make something out of this rumbling.