The extremely popular notes, photo annotation, and sketch app Paper by FiftyThree received a fairly significant update today. After existing as an iPad only offering since its initial launch back in 2012, the company behind the app have pushed out its biggest update yet by making it a universal offering with full iPhone support. The latest update, carrying version number 3.0.0, also brings with it a fresh and renewed focus on annotation and sketching with improvements to its built-in tools.