The 0.1.2 version of LookDown for Mac was available as a free download on our website. LookDown can be installed on Mac OS X 10.8 or later. This free software for Mac OS X was originally developed by Tae Won Ha. The most popular version of the application is 0.1.
From the developer:
LookDown is a simple Markdown preview App for Mac OS X. This app monitors the opened files for any change and refreshes the preview. Also the app includes QuickLook support and thumbnail generation. This application has a simple and intuitive interface.