Muscle Booster – Plan Workouts

In-app purchases
4.4
244K reviews
10M+
Downloads
Content rating
Everyone
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About this app

Muscle Booster is a workout app designed for both men and women who want to build muscle, stay healthy and feel great. Our Workout Planner serves as a personal trainer substitute, assisting you in achieving improved physical fitness, whether you're at home or in the gym.

From muscle building gym workout plans to calisthenics exercises and weight loss, Muscle Booster creates a personalised workout plan based on your goals and personal data. So whether you work out at home or at the gym, Muscle Booster's smart training algorithm will guide you through your sets, rep ranges and rest intervals to help you achieve your training goals and reach your personal milestones more efficiently.

WHY WORKOUT WITH MUSCLE BOOSTER?

1) Gain access to a library of 1000+ workouts, tailored to both men and women for muscle gain, weight loss, recovery and more, both at home or at the gym.
2) Use Workout Player for audio exercise tips, instructions, information on muscles being used and a workout / rest timer (workout controls available via Apple Watch)
3) Join Challenges based on your onboarding information – from Morning Routines, Calisthenics, Fat Burning, Chair Workouts and Dumbbells to 6-Pack and Injury Recovery.
4) Create plans based on the equipment available to you - from free weights to machines, bands and bodyweight stations
5) Each workout plan offers a completion time and number of calories you are likely to burn
6) Every time you complete a workout, Muscle Booster will display which muscles you should use next and which need to recover
7) Achieve Mini Milestones to stay motivated and feel the positive effects from training

HOW DOES WORKOUT PLANNER WORK?

- Set your fitness goals - weight loss, muscle gain, strength gain, flexibility or injury recovery
- Select your target zone - arms, core, abs, pecs, stomach, legs, chest, shoulders or full-body
- Enter your personal data - age, gender, height, weight and fitness level
- Set your desired workout location – gym or home
- Choose which days and what times suit you to workout
- Select the equipment available
- Enter any health or training restrictions, from injuries to cardiovascular disease
- Add personal reminders to ensure you never miss an opportunity to workout
- Take an AI test to measure your fitness level
- Receive a personalised workout plan

Muscle Booster is the ultimate choice for home and gym workouts. Take on the challenge, lose weight, build muscle and strength, and change your life with your personalised gym workout planner.

Download the Muscle Booster app to boost your energy and health with effective workouts.

SUBSCRIPTION INFO
You can download the app for free and use limited functionality without payment. If you’d like to have a full experience with the app, you will need a subscription.

In addition to the purchased subscription, we may offer you add-on items (e.g. fitness guides, VIP customer support service) for an additional fee, either one-off or recurrent. This purchase is optional: your subscription is not conditional on such a purchase. All such offers will be displayed in the app.

Muscle Booster Terms of Use: https://legal.muscle-booster.io/page/terms-of-use

Muscle Booster Privacy Notice: https://legal.muscle-booster.io/page/privacy-policy
Updated on
23 Oct 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
Financial info and Device or other IDs
This app may collect these data types
Location, Personal info and 5 others
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

4.4
240K reviews
Robert Foppiano
12 October 2025
I like the app. This has made it easy to stay on track and keep me interested in continuing. I do an easy 10_15 minute workout and can customize it if I would like. I can add exercises to the workout when Im feeling good and have more time. But although I choose the shorter workouts, I feel it is keeping me moving more that if I did not. I like you can go at your own pace, and I like I like the flexibility of it. Its been a good thing for me and has helped me come back from a serious injury.
2 people found this review helpful
Did you find this helpful?
WELLTECH APPS LIMITED
13 October 2025
Hello Robert, Thank you for your feedback! It’s wonderful to hear how the app has positively influenced your fitness journey and offered you flexibility. Your progress after injury is truly inspiring. Keep enjoying those workouts at your own pace! If you have more to share, please email me at adam.support@muscle-booster.io. – Adam, MuscleBooster
Max Steele
23 October 2025
App was good until recently. Swapping exercises causes additional rounds to be added. I had up to 8 rounds on my 4-round workout. Several workouts have been restarted after checking a text or changing songs. Countdowns to start and finish workouts seem to come and go. And more times than I can count the screen goes blank when it's time to start an exercise.
1 person found this review helpful
Did you find this helpful?
WELLTECH APPS LIMITED
23 October 2025
Hi Max! I'm sorry to hear that you've faced issues with unexpected rounds and workouts restarting. Your feedback is really valuable to us. If you could share more details at adam.support@muscle-booster.io, it would help us to investigate the case and provide you with a resolution. – Adam, MuscleBooster
Wesley Franks
14 October 2025
The first version was amazing. Step tracker & encouraging pop up messages were motivating. Then came an update & the step tracker would periodically stop working. Multiple messages to have it fixed were met with empty promises that they were working on it. New update came out and now it doesn't work at all. You had something great, but not worth the cost when your fix it team can't fix it. Your birthdates show inaccurate, save incorrectly, and the simple day, month & year are completely wrong
Did you find this helpful?
WELLTECH APPS LIMITED
14 October 2025
Hi Wesley! Thank you for your feedback. We appreciate you bringing the step tracker and date issues to our attention. Your input is vital, and we’re committed to improving your experience. We already contacted you from support@muscle-booster.io. – Adam, MuscleBooster

What's new

Squished a few bugs along the way to make Muscle Booster an even smoother workout experience for you. Thanks for being a part of our journey! And don’t forget, if you’re enjoying the app, a quick rating means the world to us and we read each one with gratitude.