App info is currently processing and/or the app is not yet fully available for sale on the US App Store.
I've had this app for a year now and I highly recommend it. I use to to take all of my notes in my college courses. It's superioir to every app I've tried over the course of the past two years since going all-digital with schoolwork. A stylus is necessary to maximize usefulness, but a good stylus can be had for less than $10. I cannot recommend enough.