Pyramid Interval Training 1', 2', 3', 4', 5', 4', 3', 2', 1' fast and in between 1' slow. The app shows the remaining time of the current interval duration. The timer is always counting down for each interval duration. When the time goes to 0 the next interval duration starts. Between each speed change three beep sounds are omitted. The training starts with a warm-up until you press the "LAP" button. When the interval training has finished, the app shows the duration of the cool-down time. This timer continues until you stop the training. Changelog: 2U2 means, this is update 2 of the Pyramid-Interval 2 app. This updates fixes one missed beep sound after the last fast interval and repeats the beep sound three times instead of only once.