If you’re looking to turn your iPad into a blank slate that you can easily, beautifully be filled with anything from a sketch to a flow-chart, a list to an diagram, get Paper and get creating.
Paper by 53 for iPad is exactly what the name implies, a fresh canvas ready and waiting for your ideas, inspiration, and art. While hand drawing and handwriting note-taking apps are nothing new to the iPad or App Store, Paper feels qualitatively different in kind. It has a focus, a flow, a humanity, and a technology about it that somehow come together to create one of the most natural creative experience I’ve had on the iPad to date.
When you launch Paper you’re greeted with a series of beautifully rendered books. (They look so good they almost overcome the shadows behind them not falling at a precise 90 degree angle. Almost.) There are three pre-populated for you: Sketches, Ideas, and Making Paper. Sketches and Ideas are empty and waiting for you to fill them with wonders of your own devising. Making Paper is pre-filled with samples of what those creations can involve: pretty much anything you could whiteboard, scribble, or sketch.
Tap or pinch open a book and it unfolds in front of you into a browsing and sharing mode. You can quickly leaf through the pages, add or delete pages, or share pages via Tumblr, Facebook, Twitter, or Email. There’s no save to Camera Roll, unfortunately, but you can take screenshots of the pages to work around that.
Source by: http://www.imore.com/paper-53-ipad-review-head-screen
Some of the samples done by participants hand-ons activities