Best Muscle Booster Free Apps & Games

250+ iOS apps & games curated and reviewed

4.7 avg rating
20 free apps & games
Updated October 2026

With an average user rating of 4.7★, the muscle booster free category is one of the App Store's strongest. Browse all 250+ apps and games we track, sorted so the most loved ones surface first.

Compare top Muscle Booster Free Apps & Games (October 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Muscle Booster Workout TrackerMuscle Booster Workout TrackerFree4.5★ (138K)NoYesOct 2026
2Nike Training ClubNike Training ClubFree4.8★ (281K)YesNoOct 2026
3Gymshark Training and FitnessGymshark Training and FitnessFree4.8★ (15K)YesNoOct 2026
4Workout for Seniors: SeniorFitWorkout for Seniors: SeniorFitFree4.7★ (8.6K)NoYesOct 2026
5GLP-1 Muscle GuardGLP-1 Muscle GuardFree—NoNoJul 2026
6Fitness App: Gym Workout PlanFitness App: Gym Workout PlanFree4.7★ (36K)NoYesOct 2026
7MAX: Testosterone BoosterMAX: Testosterone BoosterFree—NoYesSep 2026
8Muscle Builder & Workout PlansMuscle Builder & Workout PlansFree4.8★ (1.6K)NoYesAug 2026

Top Picks for Muscle Booster Free

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
#69in Health & Fitness
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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
Nike Training Club#2

Nike Training Club by Nike, Inc

Training and Workouts
Strong Contender
💪 Health & Fitness
4.8😊(281K ratings)
FreeAds
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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.

What We Love

  • 🙌 Excellent variety of workouts
  • 💪 Effective for building strength and fitness
  • 🤸‍♀️ Great for beginners and advanced users
  • 🕰️ Convenient and flexible workout options
  • 🎨 Diverse instructor personalities and styles
  • 🧘‍♀️ Inclusion of yoga and mobility workouts
  • 💰 Free app with premium content available
  • 🤝 Seamless integration with Apple Watch

Room to Improve

  • 🐛 Frequent app crashes and bugs
  • 🤖 Impersonal and repetitive instructor voices
  • 🤔 Lack of customization and personalization
  • 🕰️ Inaccurate workout tracking and calorie counting
  • 🔍 Poor search and filtering functionality
  • 📵 Annoying notification prompts
  • 🧹 Cluttered and confusing user interface
4.8😊(15K ratings)
FreeAds
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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.

What We Love

  • 👍 Easy to navigate and find exercises
  • 👍 Visually pleasing app
  • 👍 Ability to create custom exercises
  • 👍 Variety of pre-made workouts
  • 👍 Helpful video demonstrations
  • 👍 Ability to track progress and personal bests
  • 👍 Completely free app with no ads
  • 👍 Motivating and encouraging trainers
  • 👍 Extensive exercise library
  • 👍 Seamless workout tracking

Room to Improve

  • 🐛 Logging out issues causing data loss
  • 🐛 Glitchy timer and screen freezing
  • 🐛 Inability to edit previous workout data
  • 🐛 Lack of equipment-specific filtering
  • 🐛 Difficulty finding and accessing saved workouts
  • 🐛 Inconsistent weight tracking between workouts
  • 🐛 Lack of Apple Watch integration

More Muscle Booster Free apps to explore

FAQ about Muscle Booster Free

What are the best muscle booster free apps & games for iPhone?
Muscle Booster Workout Tracker tops our muscle booster free apps & games ranking as of October 2026, with a 4.5-star average from 138K 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 October 2026.
We track 250+ muscle booster free apps & games on the iOS App Store as of October 2026, ranked by rating, recency, and analysis of real user reviews.