212+ iOS apps curated and reviewed
With an average user rating of 4.7★, the muscle booster free category is one of the App Store's strongest. Browse all 212+ apps we track, sorted so the most loved ones surface first.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 4.5★ (135K) | Yes | Yes | Jul 2026 |
| 2 |  | Free | 4.7★ (8.5K) | No | Yes | Jul 2026 |
| 3 |  | Free | 4.8★ (277K) | Yes | No | Jul 2026 |
| 4 |  | Free | 4.8★ (123K) | Yes | Yes | Jul 2026 |
| 5 |  | Free | 4.9★ (13K) | Yes | No | Jul 2026 |
| 6 |  | Free | 4.7★ (9.2K) | No | Yes | Jul 2026 |
| 7 |  | Free | 4.9★ (9.2K) | No | Yes | Jul 2026 |
| 8 |  | Free | 4.7★ (11K) | Yes | Yes | Jul 2026 |
This app acts as a personal trainer, creating customized workout plans for muscle gain, weight loss, or recovery. It offers a vast library of exercises and challenges for home or gym, adapting to your available equipment and goals.
This app offers low-impact workouts designed for seniors to improve strength, flexibility, and balance. It provides clear instructions, personalized plans, and progress tracking to help older adults stay active and healthy at home.
Access expert-led workout programs and coaching for strength, conditioning, yoga, and mindfulness. Train at the gym or at home with guidance for all fitness levels. Track your progress and achieve your fitness goals.
This app offers short, effective workouts designed to improve your health. It provides guided exercises with voice and video instructions, suitable for beginners and requiring no equipment. Users can also build custom routines and integrate with Apple Health.
This app offers thousands of free workouts and personalized training plans designed by athletes and trainers. Track your progress, discover new routines, and build lasting healthy habits with guided programs and customizable options for all fitness levels.
This AI-driven fitness app creates personalized workout plans for fat loss, muscle gain, and overall well-being. It offers over 1200 exercises and 500 workouts, catering to various equipment and fitness levels. Track your progress with detailed reports and integrate with Apple Health for a comprehensive view of your fitness journey.
Build muscle and tone your body at home with no equipment. This app offers daily, scientifically-proven workout routines for major muscle groups, with 21 progressive levels and video guidance. Customize your plan and track progress to achieve your fitness goals.
This app offers scientifically designed, equipment-free workout plans for all muscle groups. Get personalized guidance from certified trainers to tone muscles and achieve fitness goals at home, with options to sync data with Apple Health.
Achieve your fitness goals with guided workout programs designed to reduce belly fat and build core strength. Access effective routines anytime, anywhere, with voice and video instructions. Track your progress and integrate with Apple Health for a comprehensive fitness experience.
This AI-powered fitness trainer creates personalized, multi-week workout plans that adapt to your progress and goals. It offers expert video guidance for each exercise, tracks your progress visually, and provides motivational insights. Enjoy tailored workouts that avoid disliked or injured areas, with options for strength training, cardio, and more.
This fitness app creates personalized workout plans and meal plans to help users achieve their fitness goals, whether it's gaining muscle, losing weight, or getting shredded. It offers a variety of workout styles, video tutorials, and motivational features to make fitness accessible and enjoyable.
This app offers comprehensive workout plans and diet guidance for various fitness goals, including weight loss, muscle gain, and toning. It features a vast exercise library with 3D animations, a personal workout diary, and the option to connect with certified personal coaches for tailored online training and nutrition plans.
This fitness app offers a variety of home-based workouts and personalized training plans to help users achieve their fitness goals. It includes video demonstrations for exercises and progress tracking features to keep users motivated. The app is designed to be convenient, effective, and affordable.
This app provides personalized 28-day calisthenics and chair workout programs for home fitness. It offers over 500 equipment-free exercises with audio/video guidance, adapting routines weekly based on progress. It also includes features for injury prevention and muscle recovery.
This app offers diverse workout options, from guided programs to custom routines, with detailed tracking of health metrics and progress. Connect with a community of users, earn rewards, and shop for supplements directly within the application.
This app guides users through muscle stimulation sessions using a connected wearable device. It intelligently adjusts intensity, duration, and pad placement based on fatigue and activity levels for safe and effective muscle re-education and recovery.
This app provides personalized fitness plans and a wide variety of bodyweight exercises for users to build muscle, lose weight, or stay fit. It requires no equipment and can be used anywhere, anytime, with features like workout tracking and video guides.
This app offers guided home workout routines for weight loss, fat burning, strength building, and muscle toning. It provides quick, effective sessions from 5 to 30 minutes, suitable for all fitness levels and genders. Create custom routines and track progress with health app integration.
This app helps serious lifters plan and track their workouts with AI coaching and community features. Log sets, reps, and weights, and monitor progress with powerful analytics to achieve your fitness goals.
Build muscle and achieve your fitness goals with science-backed training recommendations. Get personalized workout plans, track your progress, and access technique videos to optimize your gym sessions. Ideal for anyone seeking effective results.