Funxtion vs Muscle
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Funxtion
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Funxtion app: stream a variety of workouts from cardio, HIIT, strength, yoga, pilates and more! The Funxtion app lets you workout anytime, anywhere with hundreds of classes to choose from. Whatever your age, fitness level or goal, youβll find the perfect workouts for you. Everything from cardio, strength, high intensity interval training (HIIT), core, booty, to flexibility - thereβs something for everyone. Choose from a variety of classes, 7 - 60 minute workouts to fit your schedule. Receive the same access to all the classes, challenges, and specific training plans at the gym but now also in the comfort of your own home or on the go!
Muscle
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Muscle Coach is a sophisticated fitness application with a primary focus on muscle growth. It stands out by offering personalized workout programs that are specifically tailored to an individual's goals and needs. Here's an overview of its technical functionalities and advantages: Personalized Workout Programs: The app customizes training programs by adjusting the training volume (number of sets per muscle group) to match your goals and needs, taking into account the data you manually track about your performance and muscle soreness. Advanced Tracking and Analysis: Muscle Coach utilizes your manually tracked data points, including exercise technique ratings, 1 Rep Max (1RM) performance, and volume indexes, to provide insights into the type of progress your muscles are making. This could be growth in size, strength gains, endurance improvements, or signs of under-recovery, all while considering the leading sets prior to each performance assessment. Performance Trend Monitoring: By identifying trends in your performance data, the app can detect when your performance starts to plateau or decline. It then automatically adjusts your training volume downwards, allowing you to recover adequately. This helps you break through plateaus and achieve new personal records in muscle mass and strength. Optimized Training Recommendations: Muscle Coach advises on the most feasible combination of repetitions and weight within your desired rep range and set weight increment for each exercise. It achieves this by calculating every possible combination and selecting the best choice for you, based on the expected strength increase from workout to workout for your experience level. This approach to training and recovery management is designed to optimize muscle growth and strength gains by ensuring that workouts are both effective and sustainable over time.
Screenshots
Verdict
The clearest difference is ads: Funxtion at none against Muscle's shown. Muscle's advantage is update cadence (fortnightly vs every 20 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Funxtion ships an update every 20 months, Muscle fortnightly. The most recent releases landed on September 10, 2026 and May 18, 2026 respectively.
| Parameter | Funxtion | Muscle |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 20 months | Fortnightly β better |
| Ads | No β better | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad, iPod β better |
| Requires iOS | 14.0 | 13.0 β better |
| Further details β not scored | ||
| Size | 72 MB | 186 MB |
| Age rating | 4+ | 4+ |
| Developer | FunXtion International B.V. | BullsAI B.V. |
In-app purchases
Funxtion
No in-app purchases
Muscle
No in-app purchases









