Best Workout App Gym

249+ iOS apps curated and reviewed

4.7 avg rating
20 free apps
Updated October 2026

Muscle Booster Workout Tracker is the household name in workout app gym, but it's far from the only option. We track 249+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.

Compare top Workout App Gym (October 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Muscle Booster Workout TrackerMuscle Booster Workout TrackerFree4.5★ (138K)NoYesOct 2026
2Planet FitnessPlanet FitnessFree4.9★ (815K)NoNoOct 2026
3Fitness AI Gym Workout PlannerFitness AI Gym Workout PlannerFree4.7★ (56K)YesYesOct 2026
4Nike Training ClubNike Training ClubFree4.8★ (283K)YesNoOct 2026
5GymMaster MemberGymMaster MemberFree4.2★ (334)NoNoOct 2026
6TrueCoachTrueCoachFree4.9★ (36K)NoNoOct 2026
7Workout Trainer AIWorkout Trainer AIFree4.7★ (7.7K)YesYesOct 2026
8ProFit: Workout PlannerProFit: Workout PlannerFree4.6★ (43K)YesYesOct 2026

Top Picks for Workout App Gym

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
#73in Health & Fitness
Muscle Booster Workout Tracker screenshot 1
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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
Planet Fitness#2
4.9😐(815K ratings)
FreeIn-App Purchases
#3in Health & Fitness
Planet Fitness screenshot 1
Planet Fitness screenshot 2
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Planet Fitness screenshot 6

Access a vast library of on-demand workouts, exercise tutorials, and activity tracking, even without a membership. Members enjoy exclusive perks like brand discounts, referral bonuses, and gym crowd insights.

What We Love

  • 👍 Helpful tutorials
  • 👍 Positive environment
  • 👍 Friendly and cooperative staff
  • 👍 Clean and well-maintained facilities
  • 👍 Affordable membership options
  • 👍 Convenient app features (e.g., check-in, crowd meter)

Room to Improve

  • 🐛 Unreliable crowd meter
  • 🐛 Inability to cancel membership online
  • 🐛 Inconsistent enforcement of policies
  • 🐛 Outdated or broken equipment
  • 🐛 Lack of advanced workout tracking features
  • 🐛 Misleading information about perks and discounts
Fitness AI Gym Workout Planner#3

Fitness AI Gym Workout Planner by FitnessAI Inc.

Personal Trainer: Muscle Coach
Worth Considering
💪 Health & Fitness
4.7😊(56K ratings)
FreeAdsIn-App Purchases
Fitness AI Gym Workout Planner screenshot 1
Fitness AI Gym Workout Planner screenshot 2
Fitness AI Gym Workout Planner screenshot 3
Fitness AI Gym Workout Planner screenshot 4
Fitness AI Gym Workout Planner screenshot 5
Fitness AI Gym Workout Planner screenshot 6

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.

What We Love

  • 🚀 Easy to use
  • 🔍 Detailed exercise instructions
  • 📈 Tracks progress and adjusts workouts
  • 👍 Customizable to equipment available
  • 💪 Helps build strength and muscle
  • 🤖 Adaptive AI-powered workouts

Room to Improve

  • 🔢 Limited exercise selection
  • 🕰️ No warm-up or cool-down options
  • 🤔 Difficulty adjusting workouts
  • 🔍 Lack of exercise substitution options
  • 🤖 AI sometimes overestimates abilities
  • 🔌 Syncing issues with Apple Watch

More Workout App Gym apps to explore

FAQ about Workout App Gym

What is the best workout app gym for iPhone?
Muscle Booster Workout Tracker tops our workout app gym ranking as of October 2026, with a 4.5-star average from 138K App Store ratings, and it's free to download.
Yes — 20 of the top workout app gym we rank are free to download, including Muscle Booster Workout Tracker and Planet Fitness.
Muscle Booster Workout Tracker has no ads and offers in-app purchases, according to its App Store listing as of October 2026.
We track 249+ workout app gym on the iOS App Store as of October 2026, ranked by rating, recency, and analysis of real user reviews.