Purp - A smart to-do list and goal tracker app
Be Focused by XWaveSoft - Simple Pomodoro timer in your Mac's menu bar
Things - Things is an easy to use task manager.
Effortless - Stay focused and beat procrastination on your Mac.
Nirow - Habit tracking: Automated, Siri-ed, Calendar-ed, and More!
Memory by Timely - An intelligent timeline of everything you did in a day.