Habitica - Habitica is a free habit building and productivity application.
Be Focused by XWaveSoft - Simple Pomodoro timer in your Mac's menu bar
Loop Habit Tracker - Loop Habit Tracker (AKA uhabits) helps to create and maintain good habits in order to achieve their...
Effortless - Stay focused and beat procrastination on your Mac.
Flow Dashboard - Habit, task & goal tracking + quantified self
Memory by Timely - An intelligent timeline of everything you did in a day.