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The best shape of your life

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  • Award
    3000+
    exercise library
  • Award
    70M+
    downloads
  • Award
    4.6
    rating*
    *based on 128,000 AppStore ratings

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Get the body you want with Muscle Booster

  • See your body change

    See your body change

    Enjoy getting stronger, healthier, and more capable with every workout.

  • Eat to match your goal

    Eat to match your goal

    Log meals, get recipes and nutrition guidance to support your fitness goal.

  • Train at your own pace

    Train at your own pace

    Got 5 minutes or 60? At home or the gym? There's a workout ready for you either way.

  • Challenge yourself

    Challenge yourself

    Feel like doing more? Accept challenges to mix up your training.

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Why people love Muscle Booster

  • I've used this app for two years.

    I've used this app for two years. Great results. Lots of variety. Good feedback and tracking of progress.

    Jim Stacey

  • Needed something to get me moving and committed again.

    This is a great way to reach daily goals

    JayCee 51

  • Taking care of me

    I’m 56 years old and I had triple bypass about a year ago. I decided to do better and exercise regularly. I love this app. I like the diversity of it and I can pick the workout that I want to do.

    dustypsalms

  • By far the best App I’ve found

    By far the best App I’ve found. Flexible programs, adjustable, and enjoyable!

    nomisb3

  • This program is making me feel much better…

    This program is making me feel much better even after the first few days.

    Chris Polo Barnes

  • Perfect workout to start the summer! The workout was so easy to register and…

    The workout was so easy to register and follow the directions. The trainer shows and explains at the same time what to do . The workout starts slow and adjusts to the person’s level of readiness for the next lesson. I haven’t exercised in years , this was a perfect start! It works well. This app is the best I tried . Only a couple reminders throughout the day. Simple and easy.

    Mary

  • I really like the workouts…

    You can customize length and difficulty. Better than others I have tried.

    Drums18

  • Muscle Booster has been great in it's…

    Muscle Booster has been great in it's approach to improve my physical as well as mental health. This process has proven to be what I needed to improve my physical and mental health for my age.(70)

    oliveroree

  • A variety of exercises, adapted to my abilities.

    After 3 weeks, I'm rediscovering some forgotten muscles.

    Serge Lizzola

  • Workout catered to your injuries

    I am broken. I have lower back problems with pressure on a nerve going down my left leg, I also have neuropathy with balance problems. The app allows you to enter injuries and prepares a workout catered to your injuries. After you do a workout, the app asks for feedback on each exercise and if you found an exercise too difficult, the app will make adjustments to your workout.

    D.M.

  • Very well done, easy to follow, and with consistent support.

    Very well done, easy to follow, and with consistent support. The exercises are well explained. A very good app.

    Marc Drolet

  • After one week +I feel better, and will continue.

    I started more than a week ago, it is a clear and easy to follow, The timing is good, the exercises are well explained. I enjoy it, and will continue.

    zeev jonas

  • PHENOMENAL

    I'm 69 years old, it has improved my mobility, flexibility, and balance, very easy to follow!

    William R Peguero

  • I really like the app.

    I use it almost daily. It has exercises for all levels and they're quite comprehensive.

    Ippolito Garzaro