Practice your Referee Interval Tests.
This App includes the following exercises.
> High Intensity Test
> YoYo Intermittent Recovery Test Level 1
> SDS Single Double Single Test
> ARIET Assistant Referee Intermittent Endurance Test Level 2
All trainings are supported by an audio file. You can also choose between intro and no intro or warm-up and no warm-up. Each workout is also supported by a visual display on the device.
Enjoy.