[parterburn]

I built a journal-over-email app that has been a profitable side business since day one. Defining "profitable" is necessary, I think - in this case it's covering it's own costs + more. This isn't my full-time gig, so I'm not counting any sort of hourly rate for my own time. The MVP is something I built over a long weekend, and I occasionally work on it while my wife and I watch TV/movies (so the time investment hasn't been too drastic, and the alternative is $0/hr).

The app is called Dabble Me (https://dabble.me) and you can read about the inspiration and costs to run here: https://medium.com/startup-lesson-learned/increase-your-happ...

Today (18mos since launch) it's generating around $500/mo in passive income. I played around with a few different pricing models. The first was a "donate whatever you can" for a few pro options (did not generate what I expected), the next was a pretty lenient freemium model (lacked the upgrades), and what seems to be working best is a very stringent freemium model.

A big part of Dabble Me and my passion for the project arises from this being a "scratch your own itch" build. I want this service to exist more than anyone else...so I built it and charged others to use it. That seems to be a theme that has a higher success rate than others.