The Reddit consensus on Muscle Booster is overwhelmingly negative. While a few users appreciate the exercise video library and guided workout plans, the vast majority of complaints center on aggressive billing practices, nearly impossible cancellations, and workout programming that lacks real progression. If you’re considering a subscription, here’s what actual users report and how it stacks up against alternatives.
What Users Like About It
The praise for Muscle Booster is thin but consistent on one point: the app provides decent workout plans with video demonstrations for each exercise. For a true beginner who has never stepped foot in a gym, the visual guides offer enough to get started. The app supports home workouts (bodyweight only), dumbbell routines, and full gym setups, so you can filter based on whatever equipment you have access to.
The nutrition side has some depth on paper. During onboarding, you set dietary preferences, allergies, and how much time you want to spend cooking. The app calculates daily calorie and nutrient targets based on your age, weight, height, and activity level, and it offers meal suggestions that factor in time of day and recent meals. You can choose between intermittent fasting or calorie tracking as your primary approach. That said, meal suggestions are locked behind an additional paid upgrade on top of the base subscription.
The Programming Falls Short
The most substantive criticism from users who actually stuck with the workouts is that the programs just repeat. There’s no built-in progressive overload, meaning the app doesn’t systematically increase weight, reps, or intensity over time. That’s a fundamental problem because progressive overload is the single most important principle for building muscle. Without it, you plateau quickly.
Users also report that the app doesn’t let you log or track the weight you used for each exercise. So even if you wanted to manually progress, you’d need a separate system to remember what you lifted last time. For anyone past the absolute beginner stage, this makes the app feel like a glorified exercise library rather than a training tool.
Billing and Cancellation Problems
This is where Muscle Booster’s reputation collapses. Reddit threads are filled with users describing what amounts to a billing nightmare. The problems follow a pattern:
- Surprise charges. The onboarding quiz never mentions cost until the very end, after you’ve invested several minutes answering questions. Users feel baited into a purchase they didn’t expect.
- Auto-renewal traps. Subscriptions renew automatically, and users report being charged even after they believed they’d cancelled. One user received a cancellation confirmation email but found their account still showed an active subscription with a next payment scheduled.
- Refund runaround. There’s no live customer support, only email. Users consistently describe getting automated or bot-like responses that deny refunds by citing the company’s own refund policy. Multiple users report sending a dozen emails and receiving identical templated denials.
- Contradictory refund requirements. One user was told they needed to commit to using the app for 14 days and provide proof of usage before qualifying for a refund on a product they never used.
- No app store protection. Because transactions often process through the company’s website rather than through Apple or Google’s app stores, you can’t use the standard app store refund process. Your only fallback is disputing the charge with your bank.
Some users have gotten refunds, but typically only after threatening legal action or filing chargebacks. One user reported that threatening a class action lawsuit got a full refund within an hour after days of getting nowhere. Others have been offered partial refunds (50%) or free months as a compromise.
The Developer’s Track Record
Muscle Booster is made by WellTech, which operates in the same space as BetterMe and Mad Muscles. These apps share a similar business model: a free quiz that funnels you toward a paid subscription. BetterMe, a related fitness app from the same ecosystem, holds an F rating with the Better Business Bureau and has closed 32 complaints, mostly about unauthorized charges, unexpected auto-renewals, and poor customer service. The pattern Reddit users describe with Muscle Booster mirrors these complaints almost exactly.
Better Alternatives for the Money
Muscle Booster’s monthly subscription runs around $22 (€21.99), with quarterly and annual options ranging from roughly $32 to $66 depending on the tier. For that price, several alternatives offer meaningfully better training tools.
Fitbod is the most frequently recommended alternative on Reddit for people who want an app that tells them what to do each session. It uses your training history to calculate optimal reps and weights, and it adjusts recommendations as you get stronger. Users who switched from basic tracking apps to Fitbod report breaking through plateaus thanks to its weight recommendations and large exercise library. The main knock on Fitbod is that it sometimes prioritizes isolation exercises over compound lifts like squats, bench press, and deadlifts, so you may need to customize your preferences.
Strong is a popular choice for people who already know what program they want to follow and just need a clean way to log their workouts and track progress over time. It doesn’t generate workouts for you, but it does exactly what Muscle Booster fails to do: let you record weights, track sets, and see your history for every exercise.
For a completely free option, many Reddit users point out that proven programs like GZCLP, 5/3/1, or the Reddit PPL (push/pull/legs) routine are available for free online and can be tracked in a simple spreadsheet or a free app like Strong’s basic tier. These programs have built-in progression schemes that will produce better results than Muscle Booster’s repeating workouts.
The Bottom Line on Value
Muscle Booster delivers a passable exercise library wrapped in a subscription model that users find predatory. The workouts lack progression, the app doesn’t track your weights, and the billing experience is consistently described as one of the worst in the fitness app space. At $22 per month, you’re paying premium prices for something that doesn’t do the one thing a training app needs to do: help you get stronger over time. The nutrition features add some value, but locking meal suggestions behind yet another paywall on top of the base subscription undermines whatever goodwill they might earn.
If you do try it and decide to cancel, turn off auto-renewal immediately through your phone’s subscription settings (not through the app), and keep screenshots of everything. If the charge went through the app store, request a refund there first. If it went through their website directly, be prepared to dispute the charge with your bank.