Muscle Booster Workout Planner

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 acts as a personal trainer, helping you improve your physical fitness whether you prefer working out at home or at the gym.

From muscle-building gym routines to calisthenics and weight loss programs, Muscle Booster creates a personalized workout plan based on your goals and personal data. Train at home or hit the gym! Our smart training algorithm guides you through sets, rep ranges, and rest intervals to help you reach your goals faster.

WHY WORK OUT WITH MUSCLE BOOSTER?
Access a library of 1,000+ workouts tailored to both men and women for muscle gain, fat loss, recovery, and more. Perfect for home or gym training.
Use the Workout Player for audio tips, instructions, muscle group breakdowns, and a built-in workout/rest timer (compatible with Apple Watch).
Join challenges tailored to your profile—from Morning Routines, Calisthenics, Fat-Burning and Chair Workouts to Dumbbells, 6-Pack Training, and Injury Recovery.
Create custom plans tailored to the equipment you have available, including free weights, machines, bands, or bodyweight stations.
Each plan includes estimated completion time and calories burned.
After each session, the workout tracker highlights which muscles to train next and which ones need time to recover.
Stay motivated with Mini Milestones, helping you track progress and feel the positive effects of training.

HOW DOES THE WORKOUT PLANNER WORK?
Set your fitness goals: weight loss, muscle gain, strength, flexibility, or recovery.
Choose your target zones: arms, core, abs, chest, stomach, legs, shoulders, or full-body.
Enter your personal data: age, gender, height, weight, and fitness level.
Choose your workout location: gym or home.
Select preferred training days and times.
Pick available equipment or opt for calisthenics.
Enter health or training restrictions, such as injuries or cardiovascular conditions.
Add custom reminders so you never miss a workout.
Take an AI fitness test to assess your current level.
Receive a fully personalized workout plan.

Muscle Booster is your ultimate companion for both home and gym workouts. Ready to take on the challenge? Start strength training, lose weight, build muscle, and transform your life with your own customized gym workout planner.

Download Muscle Booster today to boost your energy, fitness, and overall health with effective, personalized workouts.

SUBSCRIPTION INFO
You can download the app for free and access limited functionality. To enjoy the full experience, a subscription is required.

Additional in-app purchases may be offered (e.g., fitness guides, VIP customer support) for a one-time or recurring fee. These purchases are entirely optional, and your subscription is not dependent on them. All offers will be clearly displayed in the app.

Terms of Use: https://legal.muscle-booster.io/page/terms-of-use
Privacy Notice: https://legal.muscle-booster.io/page/privacy-policy
Updated on
Oct 23, 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
October 12, 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
October 13, 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
October 23, 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
October 23, 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
October 14, 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
October 14, 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.