Medium CLI - A command line Interface for reading Medium stories
Markdown New Tab - Write notes in Markdown directly in the 'New Tab' page
Mac CLi - OS X command line tools for developers
NotesHub - Fully cross-platform, markdown based note-taking app
Phunt - Product Hunt command line interface
NotePlan - Make plans inside an individual markdown note for every day in your calendar. Use it as a journal for your daily tasks and plan todos in advance. For Mac, iPhone and iPad.