FocusWriter - FocusWriter is a fullscreen, distraction-free word processor designed to immerse you as much as...
Scrivener - Scrivener is a content-generation tool for composing and structuring documents.
OmmWriter - Ommwriter is a simple text processor that firmly believes in making writing a pleasure once again, reinvindicating the close relationship between writer and paper.
iA Writer - Minimal Design, Maximum Focus
WriteMonkey - Software for full screen distraction free creative writing. No whistles and bells, just empty screen, you and your words. WriteMonkey is light, fast, and perfectly handy for those who enjoy the simplicity of a typewriter but live in modern times.
Byword - The easy way to write Markdown and rich text on your Mac and iDevices