As someone who's been doing the nights-and-weekends thing for a long time, my advice is: If it ain't broke, don't fix it. Do you really, really hate your job? I

As someone who's been doing the nights-and-weekends thing for a long time, my advice is: If it ain't broke, don't fix it. Do you really, really hate your job? Is it coming to a point where you have to choose one or the other? Quitting your job and jumping onto your app full time might accelerate development, but it probably won't accelerate revenue, at least not a lot. Keep growing it on the side and take the leap when it's not a huge step down from your current income and when sales are steady enough that you feel comfortable.