Interval and Countdown timer for various scenarios. Interval Timer by Jalex is a simple and lightweight interval timer with sounds notifying you when intervals end and the option to prevent the screen from locking during a session. An invaluable tool. Suitable for use with all sports such as running, swimming, cycling, sprint, weightlifting, circuits, rowing, cardio, boxing, HIIT, and many more. Can also be used as a cooking timer or for any situation where a countdown or repeated countdown is needed.