Effortless - Stay focused and beat procrastination on your Mac.
Journalistic - A simple, yet powerful micro journaling app
Be Focused by XWaveSoft - Simple Pomodoro timer in your Mac's menu bar
Nomie - Open-source mood and life tracking
Forest App - Forest is an app that helps you stay focused on the important things in life.
Cactus - Static site generator for designers. Uses Python and Django templates.