Be Focused by XWaveSoft - Simple Pomodoro timer in your Mac's menu bar
Time 2 - Stay focused and crush procrastination
Focusmate - Distraction-free productivity via virtual coworking
Time Tracking for Freelancers - A simple, fully integrated time tracker for freelancers
Pomodoro Timer UWP - Be more productive with your time
Timing - Timing is the best way to keep track of the time you spend with your Mac.