This is a great, full-featured app that does it's job well. My only concern is: Starting a count-down that isn't one of the presets, requires at least 5 taps + the setting of the actual countdown time: It's in the menu(1), under Settings(2), ...(3), done(4), done(5), start(6). It would be helpful to have a "Custom Countdown" button on the main screen for quickly defining a non-preset countdown time. Other than that, it does it's job well. I like the red "count-up" after the count-down is finished, allowing me to see just how much overtime has been used.