I run BugMuncher on my own (https://www.bugmuncher.com), I've been working on it full time since October 2015, and it's been profitable since November 2016, providing all of my income.

If you're interested I've been documenting the entire process of taking BugMuncher from a side project to my full-time job on my blog starting here - https://www.bugmuncher.com/blog/from-side-project-to-profita...