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Muscle Booster Reviews 

7,518
TrustScore 4.5 out of 5

4.3

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Review summary

Created with AI, based on recent reviews

Looking at 2,962 reviews, reviewers overwhelmingly had a great experience with this company. Customers frequently praise the app and product for their well-designed, effective workouts and clear instructions, making them easy to follow and apply. Many users appreciate the personalized approach, with programs tailored to specific needs and goals, leading to significant improvements in strength, flexibility, and overall well-being, often reporting positive results like weight loss and reduced pain. People find the app user-friendly and a valuable tool for maintaining fitness, even with limited time or physical limitations. However, some customers noted issues with subscriptions, citing unexpected auto-renewal charges and finding the monthly cost too expensive. A few also felt the program wasn't for them, mentioning some exercises were too difficult or poorly explained, and the experience felt impersonal.

What people talk about most

User experience

Reviewers mention positive feedback about user experience, with many finding the app easy to use and the... See more

Application

Customers consistently note positive experiences with the app, praising its comprehensive design and... See more

Product

People report positive experiences with the product, finding it effective for achieving fitness goals and... See more

Subscription

Clients share ambiguous opinions on subscription, with some expressing frustration over unexpected charges... See more

Instructions

Customers had positive experiences with instructions, finding them clear, easy to follow, and helpful for... See more

Reviews shaping this summary

Rated 4 out of 5 stars

Well thought out activity plan, which is supplemented with daily 'gentle' reminders. Took the plan out for over a year and worked at it as scheduled. Didn't achieve my goals but felt that it was ben... See more

Company replied

Rated 5 out of 5 stars

Good app, but, more important, good/real people behind it! Not the right time in my life (injury, too much going on). I did not end trial in a timely manner. Customer Service was very responsive, we... See more

Company replied

Rated 5 out of 5 stars

I am till getting some jet-lag on my exercises despite deleting and then downloading the app again, but maybe it's my tablet. It often starts on How to instead of the exercise itself. Not the end of... See more

Company replied

Rated 5 out of 5 stars

I realized that the program was not going to be kind to my arthritis. I cancelled using the stated procedures within the required time. When my next 3 months subscription got processed, something h... See more

Company replied


Company details

  1. Fitness and Nutrition Service

Written by the company

Since its inception, Muscle Booster has been dedicated to helping individuals build strength, gain muscle, and achieve their fitness goals. Our mission is to make effective muscle gain workouts accessible to everyone, regardless of experience level or fitness background. By offering personalized plans and targeted exercises, we aim to empower users to take control of their fitness journey and unlock their full potential.


Contact info

4.3

Excellent

TrustScore 4.5 out of 5

8K reviews

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4.3

All reviews

(7,518)

3,791 reviews in the last 12 months

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Companies on Trustpilot aren't allowed to offer incentives or pay to hide reviews. Reviews are the opinions of individual users and not of Trustpilot. Read more

Rated 5 out of 5 stars
Muscle Booster logo

Reply from Muscle Booster

Hi Adriana,

Thank you for your wonderful feedback! It's fantastic to hear that the app fits seamlessly into your daily routine, enhancing your experience. If you ever need further assistance, feel free to reach out at adam.support@muscle-booster.io.

– Adam, MuscleBooster.

Rated 5 out of 5 stars

Being able to watch how the exercises…

Being able to watch how the exercises go.

26 July 2026
Muscle Booster logo

Reply from Muscle Booster

Hi there,

Thank you for your feedback! It's great to know that the visual guides for exercises are enhancing your experience. If you have any more thoughts or need assistance, feel free to reach out at adam.support@muscle-booster.io.

– Adam, MuscleBooster.

Rated 5 out of 5 stars

Keeps you regular

Keeps you regular. Always reminding you. Rotates drills and muscle groups never gets boring and helps keep focus.

26 July 2026
Muscle Booster logo

Reply from Muscle Booster

Hi Brent,

Thank you for your feedback! It's wonderful to hear that the app keeps you regular and makes your workouts engaging by rotating drills and muscle groups. Your experience is exactly what we strive for, and we truly appreciate your support. If you have any further questions or need assistance, feel free to reach out to me at adam.support@muscle-booster.io.

– Adam, MuscleBooster.

Rated 1 out of 5 stars

I can't say that the plan doesn't work

I can't say that the plan doesn't work. It's just not for me. That isn't my style of training and getting explanations. Maybe I simply used to a real trainer in the gym and this robotic voice in the app drives me crazy. I'm cancelling my subscription and don't want to be charged further the program. Thanks!

20 July 2026
Unprompted review
Muscle Booster logo

Reply from Muscle Booster

Hi Kate,

Thanks for taking the time to share your thoughts.

We're sorry to hear your experience didn't live up to your expectations. Your feedback helps us grow and improve – and we really appreciate it. To cancel your subscription, you'll need to open your app and navigate to Profile > Subscription, where you can find the option to cancel. If you have any trouble with this, feel free to email me at adam.support@muscle-booster.io, and I'll get this sorted for you.

– Adam, MuscleBooster

Rated 1 out of 5 stars

It's a lie and a scam

It's a lie and a scam. Several ads promote people losing 175lb in a few weeks. This is not possible to do safely without going to the gym and eating healthily after the amount of time they say you only need to train with them. AI is heavily used to photoshop results. Do not trust them, as the results they promise take years, not the weeks or few months they state. Trustpilot is full of fake positive reviews.

1 July 2026
Unprompted review
Muscle Booster logo

Reply from Muscle Booster

Hello Ric!

Thank you for taking the time to share your concerns.

Our goal is to encourage healthier habits through regular physical activity and consistency. Individual results vary from person to person and depend on many factors, including lifestyle, nutrition, starting point, and personal commitment. We understand your concerns, and your feedback is valuable to us as we continue improving our product and communication.

If you need any additional information or assistance, please send me an email at adam.support@muscle-booster.io with the subject line "TP review", and I'll do my best to help you.

– Adam, Muscle Booster

Rated 5 out of 5 stars

Easy to practice

18 July 2026
Muscle Booster logo

Reply from Muscle Booster

Hi there,

Thank you for your feedback! It's wonderful to hear that you find the app easy to practice with. Your experience is important to us, and we’re grateful for your support. If you have any questions or need further assistance, feel free to reach out at adam.support@muscle-booster.io.

– Adam, MuscleBooster.

Rated 4 out of 5 stars

Easy to start and continue

Easy to start and continue. Feeling better.

19 July 2026
Muscle Booster logo

Reply from Muscle Booster

Hi there,

Thank you for your feedback! It's wonderful to hear that you find the app easy to use and that it's contributing to your well-being. Your experience truly matters to us, and we're excited to support you on your journey. If you need any assistance, feel free to reach out at adam.support@muscle-booster.io.

– Adam, MuscleBooster.

Rated 4 out of 5 stars
Muscle Booster logo

Reply from Muscle Booster

Hi there,

Thank you for your feedback! It's great to hear that you find the app easy and enjoyable to use. Your support truly means a lot to us! If you ever need further assistance, feel free to reach out at adam.support@muscle-booster.io.

– Adam, MuscleBooster.

Rated 5 out of 5 stars

I mistakenly took out a trial for…

I mistakenly took out a trial for Muscle Booster and they have immediately agreed to refund the payment and unsubscribe me. This was impressive and a great relief given the often negative and unhelpful service given by some well known brands when purchasing on line. Thank you Muscle Booster. I will recommend you to my friends.

26 July 2026
Unprompted review
Muscle Booster logo

Reply from Muscle Booster

Hi Michael,

Thank you for your feedback! It's wonderful to hear that the refund process for your Muscle Booster trial was quick and effective. We strive to ensure a positive experience for our users, and your kind words truly mean a lot to us. If you need any further assistance, feel free to reach out at adam.support@muscle-booster.io.

– Adam, MuscleBooster.

Rated 4 out of 5 stars

The app helps me stay on track and…

The app helps me stay on track and keeps me conscience of my workout and my nutrition. The exercises are not overly complicated.

18 July 2026
Muscle Booster logo

Reply from Muscle Booster

Hi rarlinejr,

Thank you for your feedback! It’s wonderful to hear that the app helps you stay focused on your workouts and nutrition with easy-to-follow exercises. Your experience truly matters to us, and we’re here to support you on your fitness journey. If you need any further assistance, feel free to reach out at adam.support@muscle-booster.io.

– Adam, MuscleBooster.

Rated 5 out of 5 stars

It’s been really good for me as just…

It’s been really good for me as just starting back out think more nutrition help would be beneficial to the app

19 July 2026
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Reply from Muscle Booster

Hi Katie,

Thank you for your feedback! It's wonderful to hear that you've found the app beneficial as you’re starting out. We truly appreciate your suggestion regarding more nutrition support, and we’re always looking for ways to enhance our app. If you have any specific ideas or need further assistance, feel free to reach out to me at adam.support@muscle-booster.io.

– Adam, MuscleBooster.

Rated 5 out of 5 stars

I'm enjoying your workouts

I'm enjoying your workouts, there's a lot of different ones, so you dont get bored to quickly.

19 July 2026
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Reply from Muscle Booster

Hi Linda,

Thank you for your feedback! It's wonderful to hear that you're enjoying the variety of workouts and that they keep things exciting for you. If you ever have any questions or need assistance, feel free to reach out to me at adam.support@muscle-booster.io.

– Adam, MuscleBooster.

Rated 5 out of 5 stars

The honesty in refunding my purchase of…

The honesty in refunding my purchase of this product.
After medical consideration, I had to make a sound decision not continue.

26 July 2026
Unprompted review
Muscle Booster logo

Reply from Muscle Booster

Hi John,

Thank you for your feedback! I appreciate you sharing your experience with the refund process. It’s clear that you made a thoughtful decision regarding your purchase, and I want you to know that we’re here to support you however you need. If you have any further questions or need assistance, feel free to reach out at adam.support@muscle-booster.io.

– Adam, MuscleBooster.

Rated 5 out of 5 stars

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18 July 2026
Muscle Booster logo

Reply from Muscle Booster

Hi there,

Thank you for your feedback! We truly appreciate you taking the time to share your thoughts. If you have any specific concerns or suggestions, please don’t hesitate to reach out to me at adam.support@muscle-booster.io.

– Adam, MuscleBooster.

Rated 1 out of 5 stars

Misleading and abusive

Automatic renewal of subscription not very obvious and they advice you of renewal the day the take your money from your account! That gives you no opportunity to cancel the automatic subscription and then tell you that a refund is not possible but offer you to keep access for “free” when you just paid 50€ for an app that is not worth!
After all they offer a refund and ask me to adapt my comment on trust pilot …. But guess what they do in the same day? They take another amount from my bank account! Awaiting an answer from them !

25 July 2026
Unprompted review
Muscle Booster logo

Reply from Muscle Booster

Hello Carol,

I'm truly sorry to hear about your frustration regarding the automatic renewal and the timing of the charge. I understand how upsetting it can be to feel like you don't have enough time to manage your subscription. We aim for transparency.

We've already reached out to you via email to discuss your concerns and offer a resolution. Please check your inbox (and spam folder, just in case) and reply to our message at your convenience. We'll be happy to continue assisting you there and work toward a solution that you're satisfied with.

– Adam, MuscleBooster

Rated 3 out of 5 stars

Tai chi chair not the program I thought…

Tai chi chair not the program I thought it was going to be. I like programs that are excercise

18 July 2026
Muscle Booster logo

Reply from Muscle Booster

Hello Graig,

We appreciate you sharing your thoughts on the Tai Chi chair program. We understand it wasn't quite what you expected for an exercise program. We are always working to offer a variety of options.

You can find the Tai Chi Workout Challenge in ‘Challenges’ tab.

If you’d like to share more feedback or have any questions, feel free to email me at adam.support@muscle-booster.io with the subject line "TP review".

– Adam, MuscleBooster

Rated 5 out of 5 stars

I’m 64 years old

I’m 64 years old, overweight and out of shape, I just started 8 days ago, I feel better and i will keep working with this program. It’s not hard and I started morning and evening. My knees are in very bad shape, try to avoid surgery.

17 July 2026
Muscle Booster logo

Reply from Muscle Booster

Hi ION,

Thank you for your feedback! It's wonderful to hear that you're feeling better after just 8 days and that you're committed to improving your well-being. We appreciate your dedication, especially considering your knee challenges. Remember, we’re here to support you throughout your journey. If you need any assistance, feel free to reach out at adam.support@muscle-booster.io.

– Adam, MuscleBooster.

Rated 5 out of 5 stars

The various exercises are excellent

The various exercises are clearly filmed and very easy to follow, and the individual commentary for each lesson is very motivational.

18 July 2026
Muscle Booster logo

Reply from Muscle Booster

Hi David,

Thank you for your wonderful feedback! It's fantastic to hear that you find the exercises easy to follow and our commentary motivational. Your support truly inspires us to keep delivering quality content that enhances your workout experience. If you ever need further assistance, feel free to reach out at adam.support@muscle-booster.io.

– Adam, MuscleBooster.

Rated 4 out of 5 stars

Your daily coach in one clic

It s a gentle reminder everyday. It s boost me and comfort me to do my workout sessions every week. It s challenge me and the price is good

18 July 2026
Muscle Booster logo

Reply from Muscle Booster

Hi there,

Thank you for your feedback! It’s wonderful to know that our app acts as a gentle reminder and boosts your motivation for your workout sessions. Your experience truly highlights the value of staying committed to fitness, and we’re thrilled to be a part of your journey. If you ever need further assistance, feel free to reach out at adam.support@muscle-booster.io.

– Adam, MuscleBooster.

Rated 3 out of 5 stars

Its an ok app with easy exercises

Its an ok app with easy exercises. Rest times inbetween each ones . You dont need to rest there is an option to carry in to the nest exercise if you wish. Different options of difficulty. One massive drawback no exercises for the arms even though there is a full body option which I do. It still doesn't cover the arms. Been doing it for 15 days, started of a couple of days doing 7 minutes then 20 now up to 30 mi utes sessions. Haven't seen any noticeable change looks wise or scale wise but am feeling more flexible . Helping with the fibromyalgia!

18 July 2026
Muscle Booster logo

Reply from Muscle Booster

Hello Linda,

We appreciate your detailed feedback on the app's features, especially regarding the rest times and difficulty options. It's great to hear that you're feeling more flexible and that it's helping with your fibromyalgia. We understand your concern about the lack of arm exercises, even within the full-body option, and we'll certainly take this into consideration for future updates.

We already reached to you from support@muscle-booster.io to provide further assistance.

– Adam, MuscleBooster

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