How many times have you said "I'm really going to focus today" and later realize that you've been distracted by Email, Facebook, ... The key to the pomodoro technique is that you only have to focus in 25 minute chunks. Then you take a break and start again.
Focus Time can work in the background, automatically waking when your work period is complete. That way, the only thing you're thinking about is the work you're getting done. If you prefer some feedback, you can leave the countdown disk visible. Some people like having a ticking sound to stay 'in the zone'.
Focus Time is a Universal app and is designed to work on all iOS device sizes. On iPad, you can also use in a landscape orientation.
Complete pomodoros to fill in the row of stars on the home screen (don't worry - you can earn more than 8!).
Once you've used Focus Time for a little time, you can view a graph of the number of pomodoros completed per day or week.
Maybe you'd like to work for longer and take a shorter break? Change the alarm sounds when the pomodoro or break is over? Everything is configurable.
You can also record work you completed while not using the app so that it's included in the graph. Just tap on the entry in the history view and correct the value.