Sentry

Sentry is a free app perfect for HIIT workouts which can consist of cardio exercises, running, cycling etc.

You probably are tired of using old stopwatches to measure your workouts, with this simple to use app you can not only measure but also create and manage your workouts.

This app consists of 3 simple screens, one screen from which you can choose your workout. If in this screen you long click on a workout you can choose to edit or delete it.

A workout creation screen which offers a very simple and straightforward way of making and editing your workouts, a press on the "add set" button will add more sets which you then can configure. You can set a workout to repeat this will cause your workout to restart automatically after it is completed.

And one screen which will help you execute and measure your workout, this screen offers a timer which shows the remaining time for a set, all sets which you yet have to start and your overall workout progressing.

You can use this app for all kinds of sport activities ranging from yoga to cardio to outdoor running, all activities that can use a timer will benefit from this app.