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Best Flex Fitness Training Apps

250+ iOS apps curated and reviewed

4.7 avg rating
20 free apps
Updated August 2026

Flex AI Workout Trainer & Log is the household name in flex fitness training, but it's far from the only option. We track 250+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.

Compare top Flex Fitness Training Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Flex AI Workout Trainer & LogFlex AI Workout Trainer & LogFree4.6★ (2.4K)NoYesAug 2026
2Fitplan®: Gym & Home WorkoutsFitplan®: Gym & Home WorkoutsFree4.8★ (11K)NoYesAug 2026
3Macrofit FitnessMacrofit FitnessFree4.5★ (5.8K)NoYesAug 2026
4Flex Fitness Dodge CityFlex Fitness Dodge CityFree——NoJul 2026
5Flexfit Training CenterFlexfit Training CenterFree—NoNoMay 2026
6FLEX Health & FitnessFLEX Health & FitnessFree——NoAug 2026
7Flex Fitness MembersFlex Fitness MembersFree—NoNoAug 2026
8FLEX GYM LLCFLEX GYM LLCFree—NoNoMay 2026

Top Picks for Flex Fitness Training

Flex AI Workout Trainer & Log#1

Flex AI Workout Trainer & Log by Flex Artificial Intelligence Inc.

Fitness Tracker & Gym Planner
Editor's Choice
💪 Health & Fitness
4.6😊(2.4K ratings)
FreeIn-App Purchases
Flex AI Workout Trainer & Log screenshot 1
Flex AI Workout Trainer & Log screenshot 2
Flex AI Workout Trainer & Log screenshot 3
Flex AI Workout Trainer & Log screenshot 4
Flex AI Workout Trainer & Log screenshot 5
Flex AI Workout Trainer & Log screenshot 6

This app uses AI to provide personalized workout plans and real-time form feedback for weightlifters. It tracks progress, offers adaptive progression, and includes motivational features like leaderboards and streaks. It's designed for all experience levels, from beginners to pros.

What We Love

  • 🚀 Detailed workout tracking
  • 👍 Customizable workouts
  • 🔒 Comprehensive exercise library
  • 💡 Helpful progress tracking

Room to Improve

  • 🐛 Glitches and bugs
  • 💰 Expensive premium subscription
  • 🔒 Limited functionality without premium
Fitplan®: Gym & Home Workouts#2

Fitplan®: Gym & Home Workouts by MVMNT Inc.

#1 Personal Trainer App
Strong Contender
💪 Health & Fitness
4.8😐(11K ratings)
FreeIn-App Purchases
Fitplan®: Gym & Home Workouts screenshot 1
Fitplan®: Gym & Home Workouts screenshot 2
Fitplan®: Gym & Home Workouts screenshot 3
Fitplan®: Gym & Home Workouts screenshot 4
Fitplan®: Gym & Home Workouts screenshot 5
Fitplan®: Gym & Home Workouts screenshot 6

Access personalized workout plans from elite trainers, whether you're at home or in the gym. Track your progress, get step-by-step video guidance, and join a supportive community to achieve your fitness goals.

What We Love

  • 🚀 Great variety of workouts
  • 👍 Easy to follow workouts
  • 👍 Keeps you motivated
  • 👍 Helpful instructional videos

Room to Improve

  • 🐛 App crashes and freezes
  • 🐛 Bugs with saving workouts and progress
  • 🐛 Videos not loading properly
Macrofit Fitness#3

Macrofit Fitness by MacroFit Inc

The Fitness App
Worth Considering
💪 Health & Fitness
4.5😐(5.8K ratings)
FreeIn-App Purchases
Macrofit Fitness screenshot 1
Macrofit Fitness screenshot 2
Macrofit Fitness screenshot 3
Macrofit Fitness screenshot 4
Macrofit Fitness screenshot 5

Access diverse fitness and sport-specific training programs led by professional athletes and trainers. Includes curated nutrition options, macro tracking, and workout logging to help you achieve your fitness goals.

What We Love

  • 🚀 Great content and programming
  • 👍 Clear and intuitive interface
  • 🤸‍♂️ Effective and challenging workouts
  • 🎯 Structured programs with progression

Room to Improve

  • 🐛 Buggy app with frequent crashes and freezes
  • 🔍 Difficult to navigate and find workouts
  • 🔇 Lack of audio/music during workouts

More Flex Fitness Training apps to explore

4
Flex Fitness Dodge City
Flex Fitness Dodge City
Flex Fitness Dodge City
by SWK Fitness LLC
Free
💪 Health & Fitness
(0)
5
Flexfit Training Center
Flexfit Training Center
Flexfit Training Center
by Pink Ladies Fitness LLC
Free
💪 Health & Fitness
(0)
6
FLEX Health & Fitness
FLEX Health & Fitness
FLEX Health & Fitness
by Future Flex LLC
Free

Browse and purchase class packs or memberships to access fitness classes. Filter classes by type to find the perfect fit for your routine and manage your reservations with ease to stay committed to your fitness goals.

Purchase class packs and membershipsBrowse class scheduleFilter classes by type
💪 Health & Fitness
(0)
free
7
Flex Fitness Members
Flex Fitness Members
Flex Fitness Members
by Flex Fitness New Zealand Ltd.
Free
💪 Health & Fitness
(0)
8
FLEX GYM LLC
FLEX GYM LLC
FLEX GYM LLC
by FLEX GYM LLC (EL PASO)
Free
💪 Health & Fitness
(0)
9
Flexx Strength Training
Flexx Strength Training
Flexx Strength Training
by Flahives Advanced Strength Training LLC
Free
💪 Health & Fitness
(0)
10
FlexSport
FlexSport
FlexSport
The ultimate fitness app
Free

This app offers a comprehensive fitness experience designed by coaches for athletes of all levels and sports. Access curated workouts, structured programs, and instructional videos to enhance your physical conditioning daily. Track your progress and achieve your fitness goals with personalized guidance.

Workouts by category with detailsPrograms with specific fitness goalsInstructional videos with real athletes
💪 Health & Fitness
(0)
free with in-app purchases
11
Flex Fitness Jungle Gym
Flex Fitness Jungle Gym
Flex Fitness Jungle Gym
by PushPress, Inc.
Free
💪 Health & Fitness
(0)
12
Flexx Personal Training
Flexx Personal Training
Flexx Personal Training
by Flahives Advanced Strength Training LLC
Free
💪 Health & Fitness
(0)
13
FlexGym
FlexGym
FlexGym
Your training, simplified.
Free
💪 Health & Fitness
(0)
14
Flex Fitness 36360
Flex Fitness 36360
Flex Fitness 36360
by Flex Fitness 36360, LLC
Free
💪 Health & Fitness
(0)
15
Flex Studio LK
Flex Studio LK
Flex Studio LK
by Flex Studio Pvt Ltd
Free
💪 Health & Fitness
(0)
16
Stretching, Flexibility: Flex
Stretching, Flexibility: Flex
Stretching, Flexibility: Flex
Mobility Warmup Stretches
Free

This app offers video-based flexibility and mobility routines to improve range of motion, reduce stiffness, and enhance posture. It provides guided exercises for specific body areas or full-body workouts, suitable for all fitness levels. Improve athletic performance, aid recovery, and reduce stress with daily routines.

Video-based flexibility routinesTargeted mobility exercisesFull-body and area-specific workouts
💪 Health & Fitness
(11)
free with in-app purchases
17
Stretch Plus Flex
Stretch Plus Flex
Stretch Plus Flex
by Roxyfitt LLC
Free
💪 Health & Fitness
(0)
18
Flex Fitness Clubs
Flex Fitness Clubs
Flex Fitness Clubs
by Flex Fitness Club Inc.
Free

Track workouts, meals, and progress towards your fitness goals with personalized plans and real-time coach messaging. Connect wearable devices for instant body stat syncing and receive reminders for scheduled activities.

Workout and meal trackingPersonalized training plansProgress monitoring
💪 Health & Fitness
(0)
free
19
Healthy Flex Prescription
Healthy Flex Prescription
Healthy Flex Prescription
by Hejnasty LLC
Free

This app helps users begin their personal transformation journey. It serves as a portal to join a specific health and fitness coaching program.

Kickstart transformationJoin coaching programHealth and fitness focus
💪 Health & Fitness
(8)
free
20
REVL Training
REVL Training
REVL Training
by REVL Training
Free

Access structured strength and conditioning programs designed to build momentum and consistency. View studio locations, check schedules, and book your classes.

Structured strength and conditioning programsFunctional group trainingClub culture focus
💪 Health & Fitness
(0)
free

FAQ about Flex Fitness Training

What are the best flex fitness training apps for iPhone?
Flex AI Workout Trainer & Log tops our flex fitness training apps ranking as of August 2026, with a 4.6-star average from 2.4K App Store ratings, and it's free to download.
Yes — 20 of the top flex fitness training apps we rank are free to download, including Flex AI Workout Trainer & Log and Fitplan®: Gym & Home Workouts.
Flex AI Workout Trainer & Log has no ads and offers in-app purchases, according to its App Store listing as of August 2026.
We track 250+ flex fitness training apps on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.
This app acts as an AI personal trainer for weightlifters. It provides personalized workout plans, real-time feedback on exercise form using computer vision, and adaptive progression based on sports science principles. It also includes features to track progress, stay motivated, and connect with a community.
Key features include an AI coach that generates personalized workouts, patented real-time form feedback for exercises like squats and deadlifts, adaptive progression and deloading, strength curve tracking, visual progress graphs, and integration with Apple Watch. It also offers gamified elements like leaderboards and streaks.