I'll probably launch it late this week or next week. I have no audience, and don't expect massive profits either. I made it mostly because I want it. Since I plan on using it extensively, I honestly don't care if I have huge profits or a gigantic audience. I spent $5 on the domain name, am hosting it along with 10 other sites on a $5/month digital ocean box. I put in some great work this weekend, and am now going to end up with something that will fit nicely into my workflow.
It will ship with a decent free plan, and a $5/month pro plan with some expanded capabilities. If one person signs up for the pro plan, that covers the cost of hosting for this site and 9 other sites (bonus!) If 2 people sign up for the pro plan, it's profitable. If zero people sign up, I paid a very small cost for something that's going to be really useful to me.
Sometimes I wonder why so many developers gravitate towards huge ideas that they think other people might want rather than starting small, with things that you want. With this little thing I'm making, there's no risk. I've already won.