This app was mentioned in 1 comment, with an average of 1.00 upvote
Pretty awful UI, and some bugs at the moment. Haven't touched it for like 2 years, but I'm getting back into it.
As for the documentation, I would say it was really good for my needs, answered all questions. I found the api very straight forward, and it was my first time ever even using an api. As for the app ideas, that's what plagues many devs :) just choose a fun idea and run with it. For me, a friend and I were up late one night studying for finals and wondered what places were open to eat nearby. That's what conceived the app, and we just made it for our own needs.