Muscle Booster Workout Planner

In-app purchases
4.4
248K reviews
50M+
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 alternative, helping you improve your physical fitness whether you work out at home or in the gym.

From muscle-building gym programs to calisthenics and weight loss routines, Muscle Booster creates a personalized workout plan based on your goals and physical data. No matter where you train, the app’s smart algorithm guides you through sets, rep ranges, and rest intervals to help you reach your goals more efficiently.

WHY WORK OUT WITH MUSCLE BOOSTER?
Get access to a library of 1,000+ workouts tailored to both men and women that are perfect for building muscle, losing weight, recovering, and more.
Use the Workout Player for audio tips, guided instructions, muscle group targeting, and a built-in workout/rest timer (Apple Watch compatible).
Join challenges tailored to your profile! You’ll find every kind of workout from Morning Routines and Calisthenics to Fat Burning, Chair Workouts, Dumbbells, 6-Pack Training, and Injury Recovery.
Create custom workout plans based on your available equipment, including free weights, machines, resistance bands, or bodyweight options.
Each plan includes an estimated workout time and calorie burn.
After each workout, the tracker shows which muscle groups to train next and which need recovery.
Stay motivated by hitting Mini Milestones and feeling the positive effects of consistent training.

HOW DOES THE WORKOUT PLANNER WORK?
Set your fitness goals: weight loss, muscle gain, strength, flexibility, or injury recovery
Choose your target areas: arms, core, abs, chest, stomach, legs, shoulders, or full-body
Enter your personal details: age, gender, height, weight, and fitness level
Select your preferred workout location: home or gym
Pick the days and times that work best for your schedule
Choose the equipment you have or go with a calisthenics-based plan
Note any health conditions or physical limitations, such as injuries or cardiovascular concerns
Set personal reminders so you never miss a workout
Take an AI fitness test to evaluate your current level
Get a personalized workout plan tailored to your needs

Muscle Booster is the ultimate solution for effective gym and home workouts. Take on the challenge! Lose weight, build strength and muscle, and transform your life with a custom training plan designed just for you.

Download the Muscle Booster app 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 unlock the full experience, a subscription is required.

Additional in-app purchases (e.g., fitness guides, VIP customer support) may be offered for a one-time or recurring fee. These are optional and not required for your subscription. All offers will be clearly presented 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
Apr 03, 2026

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
244K reviews
Mike Engler
March 27, 2026
I am a 72yo man who needed to transition to a workout routine that was more appropriate for my age. This app has helped tremendously with that; by providing very specific mobility and weight workouts consistent with my new age appropriate goals. The app is easy to use, is very specific and keeps track of your progress. It also allows feedback for exercise routines, which can then adjust your routine for difficulty, pain etc. The routines are also very time efficient, making schedules easier.
2 people found this review helpful
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WELLTECH APPS LIMITED
March 28, 2026
Hi Mike! It’s wonderful to hear how the app has supported your transition to an age-appropriate workout routine. We’re glad that our exercises are helping you meet your goals, and that the app’s tracking and feedback features make it easy to adjust your routine to your needs. Keep it up — you’re doing an amazing job! – Adam, MuscleBooster
Whippoorwill Hill Farm
March 21, 2026
STOP!! Won't work on my Android. Before you subscribe review the many other fitness apps. Even though you can cancel monthly renewals, they intend to KEEP whatever you initially pay, even if the app doesn't work on your device. chair tai chi shows elapsed time & no audio or video. waste of money and time. I'm got junk email subscriptions I never requested immediately after confirming my account. They did reach out and offer help but nothing they suggested worked. I don't recommend this app.
2 people found this review helpful
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WELLTECH APPS LIMITED
March 21, 2026
Hi! I'm really sorry to hear that your experience with us didn’t meet your expectations. We value your feedback and want to resolve your issue as quickly as possible. To get started, please email me at [email protected]. I will work with you to find a solution and make sure everything is sorted out. – Adam, MuscleBooster
Denys Petrina
February 7, 2026
Originally got this app because tired of unavailable machines at gym and needed new motivation. Had it for ~1 year, used 3-4 times / month. Got rid of it due to technical issues in past month that wouldn't be corrected: for new-to-me exercises, sound files that announce the exercise and number of repetitions would not annunciate -- worked fine for exercises I'd done since the beginning but not the newer exercises. Support wants screenshot/video even if told "LOOK HERE!" so not worth it
10 people found this review helpful
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WELLTECH APPS LIMITED
February 8, 2026
Hi Denys! It's unfortunate to hear about the technical issues you've faced after a year with us. Your feedback on the sound files and support is valuable, and we appreciate it. For further assistance,we already contacted you from [email protected]. Wishing you the motivation you seek! – 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.