Simple 5-min countdown timer with sounds and blink at the end.
Tap start button to start timer.
Pause button on top left. To abort timer, press pause and then press stop button that appears when timer pauses.
Flick or pan-and-hold checkpoint to adjust checkpoint time.
Flick the last checkpoint to toggle between "zero/normal" mode and "count up" mode.
Pinch out checkpoints to add new one. New checkpoints can only be added in between existing checkpoints.
Pinch in checkpoints to "squash away" checkpoints in between.
Toggle alarm/silent for each checkpoint by tapping alarm icon.
Tap checkpoint body to switch checkpoint color. The last checkpoint can be zebra for blinking alarm.