Pizza Time Slices app for iPhone and iPad

When I use the pomodoro technique for production activities like software development, I find some difficulties to match my real tasks with the start and stops given by the timer. Really often when the timer rings the end of a time-segment, I’m in the middle of the activity and it’s inconvenient, for me, to stop immediately, or, sometimes I finish my task some minute in advance of the ring, and it isn’t a good thing to start a new task.
While the goal of the pomodoro technique is to separate our work in smaller task, and give us short breaks to rest a bit and recover focus, giving a precise timing is not always applicable.
Of course one can add some flexibility to the timing without any help, but when I try do this I alway end up in forget to restart the timer at some point, leaving the pomodoro stuff unattended for the rest of the day.
So I’ve thought to develop this App to add some sort of flexibility to the common
pomodoro technique. When the end of a time segment is reached the App will notify the user but the counter continue to run. The user has the time to reach a good point to stop and inform back the App, he’s now in “cooling mode”. The “cooling” segment will be re-proportioned to the length of the work segment.
The two segments sequences work/ cooling runs parallel on a circular path creating a pie chart, resembling me a sort of pizza, so the name, that is also a tribute

to the original technique, being the pomodoro (italian for tomato) one of the primary ingredients of a pizza.