Some Background: 2 years ago, I was a non-technical college student. At the time, I was homeschooling my younger sister when we had some difficulties with her self-discipline and productivity.
The Problem I'm Trying to Solve: We tried quite a number of productivity apps but they never really worked out in the long run. They were great at efficiently tracking, reminding, or organizing things, but they never really dealt with the psychological problem of motivation and perseverance. Then again, they probably weren't meant to since most developers aren't exactly behavior psychologists and most psychologists share their expertise by writing books, not programs.
And that's how I ended up spending an entire year researching habits, learning to code, and learning to design in photoshop in my spare time. Then it took another year to actually build the app. I managed to take care of all the designs, illustrations, writing, coding, hosting, etc.
First Experimental Solution: And what came out is Habbit, where your main objective is to build your future ideal self (or selves -- you have a future self at every age). And you do that by mastering the habits needed to create that future self, whether it's exercising for future fitness, learning for future knowledge, etc. For more details, there's a walkthrough demo you can try.
Hope you guys can try it out and let me know what works and what doesn't. Ideally, I'd like to make it a useful complement to your arsenal of productivity or self-development tools.