Streaks - The to-do list that helps you form good habits.
Be Focused by XWaveSoft - Simple Pomodoro timer in your Mac's menu bar
Taskful - Deadlines, meet your match.
Flow - Stop managing projects from your inbox.
Todoist - Todoist is a to-do list that helps you get organized, at work and in life.
Doropomo - Inverted Pomodoro focused for a truly work/life balance