Amazing Marvin - Customizable personal productivity tool
Time Sink - Time Sink helps you track how you spend your time on your Mac.
Focusmate - Distraction-free productivity via virtual coworking
Strict Workflow - Enforces the Pomodoro time management technique by blocking distracting sites
Social Pomodoro - Meet an accountability buddy for 25 minutes of focused work.
ChatterBlocker - ChatterBlocker is the prime software to reduce the nearby conversation’s distraction that allows you to focus on your work.