Download of cyWriter 1.0 for Mac was available from the developer's website when we last checked. We cannot confirm if there is a free download of this app available.
Please check the Mac app with an antivirus before launch as it is downloaded from the developer's website, and we cannot ensure that it is safe. The application lies within Productivity Tools, more precisely Office Tools. This free software for Mac OS X was originally created by Michelle Rudolph-Lilith.
From the developer:
cyWriter is a full-screen enabled distraction-free real-time LaTeX writing environment for OSX. The app allows the user to focus on contents while producing professionally formatted publication-ready documents. cyWriter employs the LaTeX typesetting engine, in which access to a rich set of formatting features is achieved through simple textual commands.
You may want to check out more Mac applications, such as PitStop Extreme or FileOpenInstaller, which might be related to cyWriter.