So, going from zero programming knowledge or experience to this in 3 weeks? If that is the case, it's pretty amazing. I would never have pegged this as a 'first app'. Great job.
As for anyone who was in my position (limited coding knowledge and not a pro-designer) I would definitely recommend starting from a cheap themeforest design and building up on that. Also, start small and focus. The idea of DailyDo.it was actually conceived last year, but I tried to do way too much with it, and ultimately it amounted to nothing of value. Just piles of bad designs and funky, non-functioning UI, never mind getting to code. This summer I started from scratch (which cleared my mind up), plus I was able to focus on it full-time, and everything just kind of clicked.
I think I just used the word "focus" three times in this post. That's the key. :)
I hear there's a nice one in San Francisco.