Shared my story on Indie Hackers!
r/GetDisciplined was one of the first places where I shared the app. It helped to validate the idea. I got around 600 signups in one day and 200 in the following two or three. Of this 800 signups, about 100 ended up being daily users. It is important, though, to keep in mind that at the time, the application was completely free.
This experience also taught me that people really enjoy and appreciate that you follow up. My small dedicated server struggled serving all the pages, so it's quite possible that I lost a few potential signups. Also, this completely validated the landing page. People immediately understood what the app was for and wanted to try it out.
My challenge for January, 2016 was: "Make a project that makes at least $1." And I've always scratched my own itch when it comes to productivity. Building everydayCheck was the answer.