You can download Attention Timer 0.6 for Mac from our application library for free.
From the developer:
Attention Timer helps you focus on now. You can also use it for Pomodoro. Features Simple: Only appear in menu bar, no Dock or window needed. Clever: Remind you to start timer or hurry up before time out. Efficient: Quickly start timer or restart. Use pie to show the remained time.
You may want to check out more Mac applications, such as TVShow Time, Attentive Eye Test or Economy Target - Life Time Analysis, which might be related to Attention Timer.