Be Focused by XWaveSoft - Simple Pomodoro timer in your Mac's menu bar
Ambiently - White Noise to help you concentrate, focus & relax
Focusmate - Distraction-free productivity via virtual coworking
Pomodus - A Pomodoro app that is integrated with Slack so that you can focus without Slack or your colleagues interrupting you. It silences your notifications, let's colleagues know that you're busy & when you'll be done. View stats & export your history.
Pomodoro Timer UWP - Be more productive with your time
FocusList - Daily planner & focus timer based on timeboxing and pomodoro