Paper, by developer FiftyThree, is free and offers only a handful of features initially, but it's just enough to make you want to sample some of the in-app purchases for more tools.
Upon launch you're presented with a welcome screen that outlines the simple set of tools. A tap opens a book, and swiping horizontally lets you turn the 3D pages. The feel of the app is very fluid, and it even accounts for your swipe momentum, so a stronger flick turns several pages until they slow to a stop. Details like these make the simple interface impressive, even without many bells and whistles. From there you simply tap on a page to start editing.… Read more