HIIT or high-intensity interval training is a buzzword in the fitness world. These workouts require strong bursts of energy for a short amount of time. They encourage your body to burn lots of calories even after you’re done working out. If you don’t have access to a HIIT class or just want to get in your workout at home, here are some apps to guide you through a HIIT routine.

This app provides you with a seven-minute workout scientifically structured to ensure you get the most out of it. It also offers works that are tailored to your target goals. No equipment is needed. The app motivates you with daily challenges to help you create a positive habit. The subscription starts at $9.99 a month or $59.99 a year.

J&J Official 7 Minute Workout
Designed by Chris Jordan, Director of Exercise Physiology at the Johnson & Johnson Human Performance Institute, these workouts help people get the most out of their time. Workouts range from 7 to 32 minutes featuring 72 exercises and 22 preset workouts. The layout is clean and easy to understand and features a tutorial so you can get your form just right. This app is free.

Featuring a workout plan determined to help you make fitness a habit, Sworkit has helped millions of people accomplish their fitness goals. You select the amount of time you have to work out from 1 minute to 90 minutes, and it will build a routine for you. It syncs with apps like the Apple health app and MYFITNESSPAL to give you the full view of your health. There is a subscription fee of $9.99 per month.

Cardio & HIIT Workout – Fitify
This app provides 4 unique workout categories – HIIT, light cardio, joint-friendly, and plyometric jumps. With over 90 bodyweight exercises available, you’ll be feeling fit in no time. This app is free.

Nike Training Club
Now free, the Nike Training Club features a variety of workouts, including HIIT. Enjoy videos and workouts created by Nike Master Trainers while keeping track of the workouts you’ve accomplished.