Muscle Booster Workout Planner

In-app purchases
4.4
245K 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 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
Dec 3, 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
241K reviews
Christina Paris
November 30, 2025
I really wanted to like this app, and I do! But I canceled within days of purchasing because of two serious flaws: 1) there is no bicep selection, which is crazy, and 2) you can put in that you have a full gym and it still gives you more body weight exercises than anything and there is no way to turn it off. It is cool how quickly and easily the app makes a workout for you, but it's not worth anything if it consistently gives you something you aren't interested in.
1 person found this review helpful
Did you find this helpful?
WELLTECH APPS LIMITED
December 1, 2025
Hi Christina. Thanks for your feedback — we understand your frustration. You can actually switch to male mode in Personal Details, which will unlock bicep exercises and provide workouts more aligned with your preferences. For more tips or help setting this up, feel free to reach out at adam.support@muscle-booster.io. – Adam MuscleBooster
Ryan Funk
November 28, 2025
The app is easy to use and there are a variety of exercises. One issue I have is when you want to see the preview of the exercise, it doesn't stop the start of the exercise. It would be nice if the exercise paused while looking at the preview of the exercise. Update. I have been using this for about 3 months. The biggest change I have noticed is a more toned upper torso. Since I have been doing a more broad workout, I am not surprised. I will be switching to concentrate more on the mid section.
Did you find this helpful?
WELLTECH APPS LIMITED
November 28, 2025
Hi Ryan! We’re glad to hear you find the app user-friendly and enjoy the variety of exercises! It's wonderful that you're seeing results with your upper torso. Thank you for your feedback about the preview; it helps us improve. Wishing you great success with your midsection goals! If you need any help, feel free to email us. – Adam, MuscleBooster
Alejandro Aguilar
November 15, 2025
Overall the app is pretty good. I have been fianlly using it for the last 6 months. The only issue I have and I hope the developer reads this and fix it is that when I try to change a specific exercise I don't like, it let's me pick a different one but when going back to the full routine the alternate exercise I picked was not taken but if I try to go and pick it again it is no longer available. This happens like 50% of the times.
5 people found this review helpful
Did you find this helpful?
WELLTECH APPS LIMITED
November 17, 2025
Hi Alejandro! Thank you for sharing your feedback. I'm sorry to hear that you're having trouble with the exercise selection. Your input is really important to us, and we’re here to help! If you need more assistance, feel free to reach out at adam.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.