Best Muscle Building App

249+ iOS apps curated and reviewed

4.8 avg rating
20 free apps
Updated September 2026

Whether you're new to muscle building app or looking for an upgrade, our curated collection of 249+ iOS apps has something for everyone. Each app is reviewed and rated by real users, helping you make an informed decision.

Compare top Muscle Building App (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Muscle Booster Workout TrackerMuscle Booster Workout TrackerFree4.5★ (138K)NoYesSep 2026
2Fitbod: Gym & Fitness PlannerFitbod: Gym & Fitness PlannerFree4.8★ (285K)NoYesSep 2026
3Home Workout - No EquipmentsHome Workout - No EquipmentsFree4.9★ (122K)YesYesSep 2026
4ProFit: Workout PlannerProFit: Workout PlannerFree4.6★ (43K)YesYesSep 2026
5Gymverse: Gym Workout PlannerGymverse: Gym Workout PlannerFree4.8★ (165K)NoYesSep 2026
6Gym WP - Workout Planner & LogGym WP - Workout Planner & LogFree4.8★ (2.3K)YesYesSep 2026
7Bodybuilding.com - Fitness AppBodybuilding.com - Fitness AppFree4.6★ (29K)NoYesSep 2026
8Fitness AI Gym Workout PlannerFitness AI Gym Workout PlannerFree4.7★ (56K)YesYesSep 2026

Top Picks for Muscle Building App

Muscle Booster Workout Tracker#1

Muscle Booster Workout Tracker by WELLTECH APPS LIMITED

Gym calisthenics & weight loss
Editor's Choice
💪 Health & Fitness
4.5😐(138K ratings)
FreeIn-App Purchases
#68in 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
  • 👍 Helpful for beginners

Room to Improve

  • 🐛 Buggy app performance
  • 🔒 Lack of free trial
  • 💰 Expensive subscription
  • 👎 Limited gym equipment options
  • 👎 Repetitive exercises
Fitbod: Gym & Fitness Planner#2

Fitbod: Gym & Fitness Planner by Fitbod Inc.

AI Personal Trainer & Workouts
Strong Contender
💪 Health & Fitness
4.8😊(285K ratings)
FreeIn-App Purchases
#21in 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
  • 👍 Helpful instructions and videos
  • 👍 Affordable compared to a personal trainer

Room to Improve

  • 🐛 Occasional app crashes and sync issues
  • 🔧 Workout recommendations don't always make sense
  • 🔧 Limited ability to customize workouts
  • 🔧 Weights/reps recommendations can be inaccurate
  • 🔧 Lack of personalization options (e.g. changing app theme)
Home Workout - No Equipments#3

Home Workout - No Equipments by Leap Health

Bodyweight Fitness & Training
Worth Considering
💪 Health & Fitness
4.9😊(122K ratings)
FreeAdsIn-App Purchases
#94in Health & Fitness
Home Workout - No Equipments screenshot 1
Home Workout - No Equipments screenshot 2
Home Workout - No Equipments screenshot 3
Home Workout - No Equipments screenshot 4
Home Workout - No Equipments screenshot 5
Home Workout - No Equipments screenshot 6

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.

What We Love

  • 👍 Easy to use and navigate
  • 🚀 Effective workouts that deliver results
  • 💪 Customizable plans and difficulty levels
  • 🕰️ Convenient home workouts with no equipment needed
  • 📈 Tracks progress and metrics well
  • 🤸‍♀️ Suitable for all ages and fitness levels

Room to Improve

  • 💰 Premium subscription required for full access
  • 🔍 Limited free workout options
  • 🤔 Confusing subscription options and cancellation process
  • 🤖 Monotonous voice guidance
  • 🔀 Difficulty level changes affect entire workout plan

More Muscle Building App apps to explore

FAQ about Muscle Building App

What is the best muscle building app for iPhone?
Muscle Booster Workout Tracker tops our muscle building app ranking as of September 2026, with a 4.5-star average from 138K App Store ratings, and it's free to download.
Yes — 20 of the top muscle building app we rank are free to download, including Muscle Booster Workout Tracker and Fitbod: Gym & Fitness Planner.
Muscle Booster Workout Tracker has no ads and offers in-app purchases, according to its App Store listing as of September 2026.
We track 249+ muscle building app on the iOS App Store as of September 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.

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