Best App Builder Free Muscle

221+ iOS apps & games curated and reviewed

4.7 avg rating
20 free apps & games
Updated July 2026

Every iPhone needs a few good app builder free muscle. We benchmark 221+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.

Compare top App Builder Free Muscle (July 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Muscle Booster Workout TrackerMuscle Booster Workout TrackerFree4.5★ (136K)NoYesAug 2026
27 Minute Workout: Exercise App7 Minute Workout: Exercise AppFree4.8★ (123K)YesYesAug 2026
3Six Pack in 30 Days:Get MuscleSix Pack in 30 Days:Get MuscleFree4.8★ (31K)YesYesAug 2026
4Muscle Builder & Workout PlansMuscle Builder & Workout PlansFree4.8★ (1.6K)NoYesAug 2026
5Workout Builder - Gym LifeWorkout Builder - Gym LifeFree4.6★ (2.7K)NoYesAug 2026
6Muscle Monster Workout PlannerMuscle Monster Workout PlannerFree4.7★ (9.6K)NoYesAug 2026
7Fitbod: Gym & Fitness PlannerFitbod: Gym & Fitness PlannerFree4.8★ (279K)NoYesAug 2026
8Fitness AI Gym Workout PlannerFitness AI Gym Workout PlannerFree4.7★ (56K)YesYesAug 2026

Top Picks for App Builder Free Muscle

Muscle Booster Workout Tracker#1

Muscle Booster Workout Tracker by WELLTECH APPS LIMITED

Gym calisthenics & weight loss
Editor's Choice
💪 Health & Fitness
4.5😐(136K ratings)
FreeIn-App Purchases
#73in Health & Fitness
Muscle Booster Workout Tracker screenshot 1
Muscle Booster Workout Tracker screenshot 2
Muscle Booster Workout Tracker screenshot 3
Muscle Booster Workout Tracker screenshot 4
Muscle Booster Workout Tracker screenshot 5
Muscle Booster Workout Tracker screenshot 6

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.

What We Love

  • 🚀 Great workouts
  • 👍 Easy to follow
  • 👍 Variety of exercises
  • 🚀 Customizable plans

Room to Improve

  • 🐛 Buggy app performance
  • 🔒 Lack of free trial
  • 💰 Expensive subscription
7 Minute Workout: Exercise App#2

7 Minute Workout: Exercise App by Fast Builder Limited

Lazy Workout for Weight Loss
Strong Contender
💪 Health & Fitness
4.8😊(123K ratings)
FreeAdsIn-App Purchases
7 Minute Workout: Exercise App screenshot 1
7 Minute Workout: Exercise App screenshot 2
7 Minute Workout: Exercise App screenshot 3
7 Minute Workout: Exercise App screenshot 4
7 Minute Workout: Exercise App screenshot 5
7 Minute Workout: Exercise App screenshot 6

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.

What We Love

  • 🚀 Effective workouts
  • 👍 Easy to follow instructions
  • 💪 Helps build strength and fitness
  • 🕰️ Quick 7-minute sessions

Room to Improve

  • 🐛 Occasional app freezing and crashes
  • 🔍 Limited variety of pre-designed workouts
  • 🔖 Difficulty creating custom workouts
Six Pack in 30 Days:Get Muscle#3

Six Pack in 30 Days:Get Muscle by Fast Builder Limited

Crunch, Core & Abs Workout
Worth Considering
💪 Health & Fitness
4.8😊(31K ratings)
FreeAdsIn-App Purchases
Six Pack in 30 Days:Get Muscle screenshot 1
Six Pack in 30 Days:Get Muscle screenshot 2
Six Pack in 30 Days:Get Muscle screenshot 3
Six Pack in 30 Days:Get Muscle screenshot 4
Six Pack in 30 Days:Get Muscle screenshot 5
Six Pack in 30 Days:Get Muscle screenshot 6

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.

What We Love

  • 👍 Easy to follow workouts
  • 🚀 Quick and efficient
  • 💪 Effective for building abs
  • 🎨 Good variety of exercises

Room to Improve

  • 🐛 Occasional app crashes
  • 🔊 Audio issues with background music
  • 📏 Unclear exercise instructions

More App Builder Free Muscle apps to explore

4
Muscle Builder & Workout Plans
Muscle Builder & Workout Plans
Muscle Builder & Workout Plans
Strength Training ~Gym Booster
Free

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.

Customizable workoutsPersonalized training plansVideo exercise demonstrations
💪 Health & Fitness
(1.6K)
subscription
5
Workout Builder - Gym Life
Workout Builder - Gym Life
Workout Builder - Gym Life
Fitness Planner & tracker
Free

Easily plan and track your fitness routines with over 400 exercises and clear instructions. Monitor your progress with simple stats and charts, and stay organized with a clean training diary. Supports gym, outdoor activities, and Apple Watch integration.

Workout planning and tracking400+ exercises with instructionsProgress monitoring with stats and charts
💪 Health & Fitness
(2.7K)
free with in-app purchases
6
Muscle Monster Workout Planner
Muscle Monster Workout Planner
Muscle Monster Workout Planner
AI Gym & Home Fitness Exercise
Free

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.

AI-driven personalized workout plansOver 1200 exercises and 500 workoutsSupports various equipment and bodyweight training
💪 Health & Fitness
(9.6K)
free with in-app purchases
7
Fitbod: Gym & Fitness Planner
Fitbod: Gym & Fitness Planner
Fitbod: Gym & Fitness Planner
AI Personal Trainer & Workouts
Free

This app creates personalized AI-driven workout plans to help you build muscle, gain strength, and lose weight. It adapts to your fitness level and available equipment, offering over 1000 exercises with video guides. Track your progress and get support from trainers.

AI-generated customized workout plansAdaptive AI learns from user editsOver 1000 exercises with video guides
💪 Health & Fitness
(279K)
subscription
8
Fitness AI Gym Workout Planner
Fitness AI Gym Workout Planner
Fitness AI Gym Workout Planner
Personal Trainer: Muscle Coach
Free

This app uses an advanced algorithm to create personalized workout plans for home or gym. It optimizes sets, reps, and weights to help you build muscle, get toned, or lose weight efficiently. Track your progress and achieve your fitness goals with data-driven routines.

Personalized AI workout plansOptimized sets, reps, and weightsHome and gym workout options
💪 Health & Fitness
(56K)
free with in-app purchases
9
Strong Workout Tracker Gym Log
Strong Workout Tracker Gym Log
Strong Workout Tracker Gym Log
Strength Training Planner
Free

This app helps you track your workouts and progress with an intuitive interface. It offers a wide range of exercises, detailed instructions, and advanced statistics to help you achieve your fitness goals. Easily log your routines, monitor personal records, and stay motivated on your fitness journey.

Intuitive workout loggingComprehensive exercise libraryApple Watch integration
💪 Health & Fitness
(108K)
freemium
10
Home Workout - No Equipments
Home Workout - No Equipments
Home Workout - No Equipments
Bodyweight Fitness & Training
Free

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.

Personalized workout plans500+ varied workoutsSmart workout tracker
💪 Health & Fitness
(121K)
free with in-app purchases
11
Boostcamp: Workout Programs
Boostcamp: Workout Programs
Boostcamp: Workout Programs
Gym & Strength Training Plans
Free

This app offers a vast library of structured strength training and muscle-building programs, including popular routines like nSuns and Reddit PPL. It provides tools for tracking workouts, monitoring progress, and even building custom plans. The app is designed to eliminate guesswork and provide proven methods for achieving fitness goals.

130+ expert-designed programs10,000+ community-shared routinesFull workout logging with RPE/1RM
💪 Health & Fitness
(9.6K)
free with in-app purchases
12
Lyfta: Gym Workout Tracker Log
Lyfta: Gym Workout Tracker Log
Lyfta: Gym Workout Tracker Log
Weight Lifting Routine Planner
Free

This app helps gym-goers track their workouts, build custom routines, and monitor strength progress. It features a large exercise library with video guides, social features to connect with friends, and motivational challenges. Users can log sets, reps, weight, and PRs to achieve their fitness goals.

Workout loggingCustom routine builderProgress tracking
💪 Health & Fitness
(6.1K)
free with in-app purchases
13
Idle Gym Life: Muscle Clicker
Idle Gym Life: Muscle Clicker
Idle Gym Life: Muscle Clicker
Life adventure of muscle boy
Free

Transform a sad, overweight character into a world-class bodybuilder through various exercises and challenges. Engage in boxing, hammering, and fighting opponents while evolving your character's physique and conquering the path to becoming the strongest.

Character body evolutionDiverse exercise typesFunny challenges
🎮 Games
(33K)
free with in-app purchases
14
Fitness App: Gym Workout Plan
Fitness App: Gym Workout Plan
Fitness App: Gym Workout Plan
Exercise tracker, home routine
Free

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.

Full body workout plans3D exercise animationsPersonal workout diary
💪 Health & Fitness
(35K)
free with in-app purchases
15
Madbarz: Bodyweight Workouts
Madbarz: Bodyweight Workouts
Madbarz: Bodyweight Workouts
Home Fitness Training
Free

This app offers daily, customizable bodyweight workout routines for all fitness levels. It provides video guidance for perfect exercise execution and allows users to create their own workouts. Join a community for motivation and track progress with features like a smart repetition counter and global rankings.

Daily adjustable workout routinesVideo guidance for exercisesCustom workout creation
💪 Health & Fitness
(1.4K)
freemium
16
STNDRD Workout & Fitness Plans
STNDRD Workout & Fitness Plans
STNDRD Workout & Fitness Plans
Strength Training Programs
Free

This app provides structured bodybuilding workout programs designed by a champion. It helps users track progress, log lifts, and incorporate advanced training techniques. Nutrition tracking and community support are also included to foster consistency and muscle growth.

Follow champion-designed bodybuilding programsTrack sets, reps, weight, and restLog lifts and monitor strength progress
💪 Health & Fitness
(3.7K)
free with in-app purchases
17
Bodybuilding.com - Fitness App
Bodybuilding.com - Fitness App
Bodybuilding.com - Fitness App
Train, Track, Connect, Shop
Free

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.

Multiple guided workout stylesCustom workout program builderHealth metric tracking
💪 Health & Fitness
(29K)
free with in-app purchases
18
Muscle Boy
Muscle Boy
Muscle Boy
Little boy big change!
Free

Tap the screen at the right moment to grow stronger. Upgrade your character to become the strongest boy in the universe. This game is free to play and suitable for all ages.

Tap-based gameplayCharacter upgradesFunny design
🎮 Games
(4.2K)
free with in-app purchases
19
Workout Planner - Heavy
Workout Planner - Heavy
Workout Planner - Heavy
Home & Gym Workout Planner Log
Free

This app offers AI-driven workout plans personalized to your fitness goals, schedule, and progress. It adapts in real-time to maximize strength, muscle growth, or weight loss with a vast exercise library and advanced tracking.

AI-tailored workoutsProgressive overload calculationExtensive exercise library with tutorials
💪 Health & Fitness
(1.1K)
free with in-app purchases
20
Workout for Seniors: SeniorFit
Workout for Seniors: SeniorFit
Workout for Seniors: SeniorFit
Tai Chi Workout & Chair Yoga
Free

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.

Low-impact workouts for seniorsChair Tai Chi and Chair Yoga routinesStep-by-step instructions with videos
💪 Health & Fitness
(8.5K)
subscription

FAQ about App Builder Free Muscle

What is the best app builder free muscle for iPhone?
Muscle Booster Workout Tracker tops our app builder free muscle ranking as of July 2026, with a 4.5-star average from 136K App Store ratings, and it's free to download.
Muscle Booster Workout Tracker has no ads and offers in-app purchases, according to its App Store listing as of July 2026.
We track 221+ app builder free muscle on the iOS App Store as of July 2026, ranked by rating, recency, and analysis of real user reviews.
This app serves as a personal trainer, creating customized workout plans based on your fitness goals, personal data, and available equipment. It guides you through exercises with timers and audio tips, and tracks your progress for muscle gain, weight loss, or recovery.
Key features include a library of over 1000 workouts, personalized plans for home or gym, specific challenges like calisthenics or chair workouts, and guidance on muscle usage and recovery. It also offers workout timers and audio instructions.