TeamViz works for both Microsoft Windows and Mac. This is what the Mac version looks like:
Step 1: Planning
With the Pomodoro Technique®, you do your planning in the morning and commit to doing a small number of activities that day. Normally you can complete one task/activity and then choose another one to start. You can also reassess your priorities before every Pomodoro.

Pomodoro GTD Plan Mac
Step 2: Tracking
Once you’ve decided on your activities for the day, you wind up the timer for 25 minutes and then start in on the first one. During every 25-minute time box, so called a Pomodoro, whenever an interruption happens, no matter internal or external, you can log to TeamViz and handle them after you complete current Pomodoro.

Pomodoro Timer for Mac
If your dock bar is auto-hide, you can choose the floating widget which is on top of all other windows:

Pomodoro Timer Floating Widget for Mac OSX
Step 3: Summary
After a day’s work, it’s essential to summarize your day.

Report and Analysis for Mac
Posted in: Pomodoro Technique