TomatoBar
World's neatest Pomodoro timer for macOS menu bar
...It’s a great technique to help you keep track of time and stay on task during your studies or work. Read more about it on Wikipedia. TomatoBar is the world's neatest Pomodoro timer for the macOS menu bar. All the essential features are here - configurable work and rest intervals, optional sounds, discreet actionable notifications, and global hotkeys.