I think it took me about an hour to make it. Also, I got my inspiration from a project I can't remember the name of :P. As far as I remember, it was pretty similar, except with four things. (a little secret about me and project making: most people probably think I take a few days for each project, but in most cases, I take about an hour, or even less. The rest of the time is spent by me not making anything )
I was just looking around the App Store, and I found it! It looked cool (and it is), so I got it.