Streaks - The to-do list that helps you form good habits.
Be Focused by XWaveSoft - Simple Pomodoro timer in your Mac's menu bar
Habit List - Create good habits and break bad ones with the app that keeps you focused.
Focusmate - Distraction-free productivity via virtual coworking
ProductiveApp.io - Productive is a habit tracking application.
Pomodoro Timer UWP - Be more productive with your time