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Best Flex Fitness And Workout Apps

250+ iOS apps curated and reviewed

4.0 avg rating
20 free apps
Updated August 2026

With an average user rating of 4.0★, the flex fitness and workout category is one of the App Store's strongest. Browse all 250+ apps we track, sorted so the most loved ones surface first.

Compare top Flex Fitness And Workout Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Flex AI Workout Trainer & LogFlex AI Workout Trainer & LogFree4.6★ (2.4K)NoYesAug 2026
2Flex Fitness Dodge CityFlex Fitness Dodge CityFree——NoJul 2026
3Flex FitnessFlex FitnessFree1.0★ (1)NoNoJul 2026
4Fitness Flex TrackerFitness Flex TrackerFree5.0★ (14)NoNoJul 2026
5Flex Fitness MembersFlex Fitness MembersFree—NoNoAug 2026
6AtomFlex: Fitness & WorkoutAtomFlex: Fitness & WorkoutFree—NoYesAug 2026
7Flex Fitness Jungle GymFlex Fitness Jungle GymFree—YesNoMay 2026
8Stretch Plus FlexStretch Plus FlexFree—NoNoAug 2026

Top Picks for Flex Fitness And Workout

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
Flex Fitness#3

Flex Fitness by AJWAN INTERNATIONAL CO. WLL

Fitness and Health
Worth Considering
💪 Health & Fitness
1.0(1 ratings)
Free
Flex Fitness screenshot 1
Flex Fitness screenshot 2
Flex Fitness screenshot 3
Flex Fitness screenshot 4
Flex Fitness screenshot 5

This app promotes a lasting, active lifestyle by offering a high-quality fitness experience at an affordable cost. It aims to enhance people's lives and create a healthier world for everyone.

More Flex Fitness And Workout apps to explore

4
Fitness Flex Tracker
Fitness Flex Tracker
Fitness Flex Tracker
Get Fit, Stay Fit, No Cost!
Free

This free fitness app helps you track workouts, view muscle readiness, and analyze progress. Create custom plans or use expert-designed ones, and connect with friends for motivation and friendly competition.

Interactive home screen with muscle readinessComprehensive workout loggingFlexible workout plan creation
💪 Health & Fitness
(14)
free
5
Flex Fitness Members
Flex Fitness Members
Flex Fitness Members
by Flex Fitness New Zealand Ltd.
Free
💪 Health & Fitness
(0)
6
AtomFlex: Fitness & Workout
AtomFlex: Fitness & Workout
AtomFlex: Fitness & Workout
Bodyweight Fitness & Training
Free
💪 Health & Fitness
(0)
7
Flex Fitness Jungle Gym
Flex Fitness Jungle Gym
Flex Fitness Jungle Gym
by PushPress, Inc.
Free
💪 Health & Fitness
(0)
8
Stretch Plus Flex
Stretch Plus Flex
Stretch Plus Flex
by Roxyfitt LLC
Free
💪 Health & Fitness
(0)
9
Flex Fitness 36360
Flex Fitness 36360
Flex Fitness 36360
by Flex Fitness 36360, LLC
Free
💪 Health & Fitness
(0)
10
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
11
FLEX GYM LLC
FLEX GYM LLC
FLEX GYM LLC
by FLEX GYM LLC (EL PASO)
Free
💪 Health & Fitness
(0)
12
Flex Zone MKE
Flex Zone MKE
Flex Zone MKE
by Flex Zone, LLC
Free
💪 Health & Fitness
(0)
13
Flex Sports and Fitness
Flex Sports and Fitness
Flex Sports and Fitness
by Brock Flex LLC
Free
💪 Health & Fitness
(0)
14
Flex&Flow SA
Flex&Flow SA
Flex&Flow SA
by Ask AI (Apps)
Free
⚽ Sports
(0)
15
FLEX DMV
FLEX DMV
FLEX DMV
by FLEX DC LLC
Free

Discover and book in-person group fitness classes at local studios. Explore a variety of classes and secure your spot easily through the app. Find your perfect workout experience.

Book group fitness classesFind local studiosPurchase class spots
💪 Health & Fitness
(23)
ad-supported
16
FlexTime Fitness
FlexTime Fitness
FlexTime Fitness
FlexTime Fitness Member
Free
💪 Health & Fitness
(0)
17
Macrofit Fitness
Macrofit Fitness
Macrofit Fitness
The Fitness App
Free

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.

Sport-specific workout programsProfessional athlete instructorsCurated nutrition and meal plans
💪 Health & Fitness
(5.8K)
free with in-app purchases
18
Flex Studio LK
Flex Studio LK
Flex Studio LK
by Flex Studio Pvt Ltd
Free
💪 Health & Fitness
(0)
19
Flex Body
Flex Body
Flex Body
by Momence, Inc.
Free
💪 Health & Fitness
(0)
20
FLEXcity Studios
FLEXcity Studios
FLEXcity Studios
by FLEXcity Fitness LLC
Free
💪 Health & Fitness
(0)

FAQ about Flex Fitness And Workout

What are the best flex fitness and workout apps for iPhone?
Flex AI Workout Trainer & Log tops our flex fitness and workout 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 and workout apps we rank are free to download, including Flex AI Workout Trainer & Log and Flex Fitness Dodge City.
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 and workout 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.