Muscle Booster Workout Planner

In-app purchases
4.2
242K reviews
10M+
Downloads
Content rating
PEGI 3
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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
Jul 28, 2025
Events & offers

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

4.2
238K reviews
diamond zieman
June 29, 2025
I like that you can choose which muscles to target. I think when the free features of the app you can only create a workout and then you can't even use the workout you created. Other than the targeting muscle feature, it's like every other app. I can't say I like anything about the app when it's so limited.
3 people found this review helpful
Did you find this helpful?
WELLTECH APPS LIMITED
July 1, 2025
Hi, there - thanks for sharing your thoughts! You can find your workout plan in the 'Plan' tab of the app. Each day, it includes both your main workout, as well as additional activities. You’re free to complete them at different times, if that works better for you. Please reach out to me at [email protected]. – Adam, MuscleBooster
Wendy Welborn
April 24, 2025
I like how maleable this app is! I have lots of options should something be harmful to my body. I have found it a helpful and pleasant experience. I would like an option where I can also track warm-ups and cool downs outside of the challenges. The step tracker is out of sync with my time zone, so it is not trustworthy. According to it, I have walked 2000+ steps this morning, and I just got up. My bed is not that far from the rest of my home.
11 people found this review helpful
Did you find this helpful?
WELLTECH APPS LIMITED
April 24, 2025
Hi, Wendy! Thanks for sharing your thoughts! We’re glad you find the app helpful and flexible. We hear your request for tracking warm-ups and cool-downs, and we appreciate your feedback on the step tracker being out of sync. So I can help you further please email me at [email protected]. – Adam, MuscleBooster
Derrick Haynes
March 14, 2025
I cannot listen to music and use this app at the same time with my headphones simply because this app's sound will not work. I've checked my sound settings, app notification settings, uninstalled, reinstalled, and the app continues to be silent. They've reached out before but I'm tired of this app! Avoid it and download HEVY! Muscle Booster, don't reach out anymore bro, I'm out! ✌🏾
73 people found this review helpful
Did you find this helpful?
WELLTECH APPS LIMITED
March 18, 2025
Hi, Derrick! Thank you so much for your kind words! We’re so happy to hear you're enjoying the app – your feedback truly makes our day. If you need any help, you can reach out to us at [email protected]. Thanks for choosing us! – MuscleBooster Team

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.