Interval Timer can be used for any type of interval training (HIIT). Using this interval timer, you'll be able to quickly and easily create interval workouts of any kind. Key Features Include: - Simple and easy to understand user interface - Customizable work and rest intervals - Ability to save workouts - Option to continue the timer when the app is minimized / phone is locked You can use this timer at home, at the gym, or for interval work on the track as well. No matter if you're doing cardio, bodyweight, callisthenics, high intensity interval training (HIIT), or circuit training, this timer is definitely the right one for you! Common HIIT workouts include burpees, pushups, squats, kettle-bell swings, pull-ups, jumping jacks, jumping rope, and various other movements as well. Using this interval timer you'll be able to create workouts with any number of movements you want, all to improve your health and fitness.