Muscle Booster Workout Planner

In-app purchases
4.5
243K reviews
10M+
Downloads
Content rating
Everyone
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image

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 Gym Workout Planner acts as a personal trainer alternative, helping you improve your physical fitness whether you're exercising at home or at the gym.

From muscle-building gym routines to calisthenics home workouts and weight loss programmes, Muscle Booster creates a personalised plan based on your goals and physical data. No matter your training location, the app’s smart algorithm guides you through sets, rep ranges, and rest intervals to help you hit your goals and track progress efficiently.

WHY WORK OUT WITH MUSCLE BOOSTER?
Access a library of over 1,000 workouts tailored to both men and women and designed for muscle gain, weight loss, recovery, and more.
Use the Workout Player for audio tips, exercise instructions, information on targeted muscle groups, and a built-in workout/rest timer (Apple Watch compatible).
Join Challenges based on your profile. You’ll find everything from Morning Routines and Calisthenics Home Workouts to Fat Burning, Chair Workouts, Dumbbell Training, 6-Pack Programmes, and Injury Recovery.
Create custom plans that match your available equipment, including free weights, machines, resistance bands, or bodyweight setups.
Each workout includes an estimated duration and the number of calories likely to be burned.
After every session, the app shows which muscles to train next and which require rest, helping you optimise recovery.
Achieve Mini Milestones to stay motivated and experience the full benefits of consistent training.

HOW DOES THE WORKOUT PLANNER WORK?
Set your fitness goals: weight loss, muscle gain, strength, flexibility, or injury recovery
Choose your focus areas: arms, core, abs, pecs, stomach, legs, chest, shoulders, or full-body
Enter your personal data: age, gender, height, weight, and fitness level
Select your workout location: home or gym
Choose your preferred workout days and times
Indicate which equipment you have available
Provide any relevant health or training restrictions (e.g. injuries or cardiovascular conditions)
Set reminders to ensure you never miss a session
Take an AI fitness assessment to gauge your current level
Receive your personalised workout plan

Muscle Booster is your go-to solution for effective home and gym workouts. Take the challenge! Lose weight, build muscle and strength, and transform your life with a fully customised training plan.

Download Muscle Booster today and boost your energy, performance, and overall health with guided workouts built for your body and lifestyle.

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

Additional in-app purchases (e.g. fitness guides or VIP customer support) may be offered for a one-off or recurring fee. These are entirely optional—your subscription does not depend on them. All offers will be clearly presented within 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
20 Aug 2025
Events and 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

4.5
239K reviews
Jason Montoya
13 August 2025
Hello! I've been using this app for over a year! I've lost over 50 lbs. I feel great and making progress every day! I just wanted to say that this is a great app! And the updates have been making the app better every time. Just wanted to say, it will be great if we can add extra rounds during our workout sessions, and also add extra time for workouts during customizing your your workout. Like for example you just want forearms & abs, so it just let's you do 30 mins. Otherwise, it has been GREAT!
4 people found this review helpful
Did you find this helpful?
WELLTECH APPS LIMITED
14 August 2025
Hi, Jason. Thanks so much for your positive feedback! It’s great to hear that you’re enjoying the app. If you're open to sharing more details about your experience, I’d love to learn more. Feel free to send me an email at adam.support@muscle-booster.io. - Adam, MuscleBooster
John Nitis
10 August 2025
Some of the workouts do not provide enough time to get into position. Some of the new workouts require you to attempt to pause screen to study physical configuration. The screen often doesn't pause until multiple attempts are made. After initially losing a few pounds, along with walking an average of six miles a day, during this wasted time, I have now rebounded to my original weight. Thanks for nothing. Don't appreciate taking my money and auto debuting me an additional $66.
2 people found this review helpful
Did you find this helpful?
WELLTECH APPS LIMITED
11 August 2025
Hi, John! Thank you for sharing your feedback. I'm sorry to hear about your experience with the workout timings and screen pausing. Your insights are important, and we’ve flagged this internally. i will contact you shortly from support@muscle-booster.io to help you further. - Adam, MuscleBooster
Katherine Dwyer
18 August 2025
This is a very basic app. There is no where on the app to track the weight that you are using or your body composition. It determines your BMI by height and weight alone, which is inaccurate if you already have muscle mass. For $80 a year, it doesn't give you enough. Customer service is a joke. I reached out a potential refund and heard nothing. Don't try this app.
1 person found this review helpful
Did you find this helpful?
WELLTECH APPS LIMITED
18 August 2025
Hi, Katherine! Thank you for sharing your feedback. I'm sorry to hear that you're having issues with the tracking features and BMI calculation. Your insights are truly valuable, and we’re looking into the customer service responsiveness. We already contacted you from support@musclebooster.fitness to address your concerns. - 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.