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Best Free Muscle Building App

249+ iOS apps curated and reviewed

4.7 avg rating
20 free apps
Updated July 2026

Looking for free free muscle building app? 20 of our 249+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.

Compare top Free Muscle Building App (July 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Fitness App: Gym Workout PlanFitness App: Gym Workout PlanFree4.7★ (35K)NoYesAug 2026
2Fitbod: Gym & Fitness PlannerFitbod: Gym & Fitness PlannerFree4.8★ (281K)NoYesAug 2026
3Muscle Booster Workout TrackerMuscle Booster Workout TrackerFree4.5★ (137K)NoYesAug 2026
4Gymshark Training and FitnessGymshark Training and FitnessFree4.8★ (15K)YesNoAug 2026
5LADDER Strength Training PlansLADDER Strength Training PlansFree4.9★ (182K)YesYesAug 2026
6Gymverse: Gym Workout PlannerGymverse: Gym Workout PlannerFree4.8★ (165K)NoYesAug 2026
7BroScience.appBroScience.appFree—NoNoJul 2026
8Bodybuilding.com - Fitness AppBodybuilding.com - Fitness AppFree4.6★ (29K)NoYesAug 2026

Top Picks for Free Muscle Building App

Fitness App: Gym Workout Plan#1

Fitness App: Gym Workout Plan by FITNESS ONLINE MChJ

Exercise tracker, home routine
Editor's Choice
💪 Health & Fitness
4.7😊(35K ratings)
FreeIn-App Purchases
Fitness App: Gym Workout Plan screenshot 1
Fitness App: Gym Workout Plan screenshot 2
Fitness App: Gym Workout Plan screenshot 3
Fitness App: Gym Workout Plan screenshot 4
Fitness App: Gym Workout Plan screenshot 5
Fitness App: Gym Workout Plan screenshot 6

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.

What We Love

  • 👍 Easy to use
  • 🚀 Convenient workouts
  • 🚀 Clear exercise instructions and videos
  • 🚀 Good integration with Apple Watch

Room to Improve

  • 🐛 Workout calendar doesn't adjust when workouts are missed
  • 🐛 Disconnect between phone and watch
  • 🔒 Concerns about sexualized content and predatory behavior
Fitbod: Gym & Fitness Planner#2

Fitbod: Gym & Fitness Planner by Fitbod Inc.

AI Personal Trainer & Workouts
Strong Contender
💪 Health & Fitness
4.8😊(281K ratings)
FreeIn-App Purchases
#19in Health & Fitness
Fitbod: Gym & Fitness Planner screenshot 1
Fitbod: Gym & Fitness Planner screenshot 2
Fitbod: Gym & Fitness Planner screenshot 3
Fitbod: Gym & Fitness Planner screenshot 4
Fitbod: Gym & Fitness Planner screenshot 5
Fitbod: Gym & Fitness Planner screenshot 6

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.

What We Love

  • 🚀 Great alternative to expensive personal trainer
  • 👍 Customizable workouts
  • 👍 Variety of exercises
  • 👍 Tracks progress and muscle recovery

Room to Improve

  • 🐛 Occasional app crashes and sync issues
  • 🔧 Workout recommendations don't always make sense
  • 🔧 Limited ability to customize workouts
Muscle Booster Workout Tracker#3

Muscle Booster Workout Tracker by WELLTECH APPS LIMITED

Gym calisthenics & weight loss
Worth Considering
💪 Health & Fitness
4.5😐(137K ratings)
FreeIn-App Purchases
#61in 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

More Free Muscle Building App apps to explore

4
Gymshark Training and Fitness
Gymshark Training and Fitness
Gymshark Training and Fitness
Training App
Free

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.

Thousands of free workoutsPersonalized training plansHabit tracking for 66 days
💪 Health & Fitness
(15K)
free with in-app purchases
5
LADDER Strength Training Plans
LADDER Strength Training Plans
LADDER Strength Training Plans
Fitness, Workouts, Coaching
Free

This app provides structured, coach-built daily workout plans for strength training, designed for home or gym. It offers in-ear coaching, video demonstrations, and progress tracking to eliminate guesswork and optimize your fitness journey.

Daily structured workout plansExpert coach-built programsIn-ear coaching and video demos
💪 Health & Fitness
(182K)
free with in-app purchases
6
Gymverse: Gym Workout Planner
Gymverse: Gym Workout Planner
Gymverse: Gym Workout Planner
Weight Lifting Fitness Trainer
Free

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.

AI-generated personalized workout plansAdaptive training based on progressExpert video exercise guidance
💪 Health & Fitness
(165K)
free with in-app purchases
7
BroScience.app
BroScience.app
BroScience.app
Build muscle faster than ever
Free
💪 Health & Fitness
(0)
8
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
9
The Strength Club
The Strength Club
The Strength Club
by The Strength Club
Free
💪 Health & Fitness
(0)
10
Muscle Meet
Muscle Meet
Muscle Meet
Build your dream body!
Free

This fitness app helps users build muscle and achieve their goals with personalized workout plans and detailed tracking. It offers progress analysis and community support to keep users motivated on their fitness journey.

Personalized workout plansExercise tracking and loggingProgress analysis
💪 Health & Fitness
(0)
free
11
Muscle Map: Workout Anatomy
Muscle Map: Workout Anatomy
Muscle Map: Workout Anatomy
3D Anatomy & Fitness Coach
Free
💪 Health & Fitness
(0)
12
GLP-1 Muscle Guard
GLP-1 Muscle Guard
GLP-1 Muscle Guard
Lose fat. Keep the muscle.
Free
💪 Health & Fitness
(0)
13
Muscle-Coach
Muscle-Coach
Muscle-Coach
powerd by XXL Nutrition
Free
💪 Health & Fitness
(0)
14
Ideal Workout App
Ideal Workout App
Ideal Workout App
Track Workouts. Get Gains.
Free
💪 Health & Fitness
(0)
15
LGYM-APP
LGYM-APP
LGYM-APP
by Jakub Lekiewicz
Free
💪 Health & Fitness
(0)
16
Muscle Building Workouts
Muscle Building Workouts
Muscle Building Workouts
Home Exercises for Mass Gain
Free
💪 Health & Fitness
(0)
17
FORGED: Strength Training
FORGED: Strength Training
FORGED: Strength Training
by Steve Brickhouse
Free
💪 Health & Fitness
(0)
18
The Progressive Overload App
The Progressive Overload App
The Progressive Overload App
AI Gym Plans for Muscle Growth
Free
💪 Health & Fitness
(0)
19
GameDay Revolution
GameDay Revolution
GameDay Revolution
GameDay Revolution App
Free
💪 Health & Fitness
(0)
20
Pro Bodybuilding App
Pro Bodybuilding App
Pro Bodybuilding App
Full body workout routines
Free
⚽ Sports
(0)

FAQ about Free Muscle Building App

What is the best free muscle building app for iPhone?
Fitness App: Gym Workout Plan tops our free muscle building app ranking as of July 2026, with a 4.7-star average from 35K App Store ratings, and it's free to download.
Fitness App: Gym Workout Plan has no ads and offers in-app purchases, according to its App Store listing as of July 2026.
We track 249+ free muscle building app on the iOS App Store as of July 2026, ranked by rating, recency, and analysis of real user reviews.
This fitness app provides comprehensive workout plans and diet guidance for various goals such as weight loss, muscle gain, and toning. It includes a large library of exercises with 3D animations, a personal workout diary to track progress, and an encyclopedia for learning about exercises and nutrition. Users can also find and hire personal coaches for online training sessions.
Key features include ready-made workout plans with diet suggestions created by champions, a personal workout diary and tracker, an in-app encyclopedia of over 850 exercises with 3D animations, a diet plan with a calorie counter and food tracker for over 5000 products, and sports nutrition advice. It also offers a personal feed for community interaction and direct messaging with coaches.