Best Flex Fitness Apps

237+ iOS apps curated and reviewed

4.3 avg rating
20 free apps
Updated May 2026

Out of 237+ flex fitness apps on iOS, 20 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.

Top Picks for Flex Fitness

Flex AI Workout Trainer & Log#1

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

Fitness Tracker & Gym Planner
Editor's Choice
πŸ’ͺ Health & Fitness
4.7😊(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

Get fit and strong with personalized gym workouts tailored to your goals. Achieve your fitness objectives with detailed exercise plans and progress tracking. Start your journey to a healthier you today!

What We Love

  • πŸš€ Detailed workout tracking
  • πŸ‘ Customizable workouts
  • πŸ”’ Comprehensive exercise library
  • πŸ’‘ Helpful progress tracking

Room to Improve

  • πŸ› Glitches and bugs
  • πŸ’° Expensive premium subscription
  • πŸ”’ Limited functionality without premium
Flex Fitness#3

Flex Fitness by AJWAN INTERNATIONAL CO. WLL

Fitness and Health
Worth Considering
πŸ’ͺ 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 fitness application provides a unique environment where users can build a lasting, active lifestyle, promoting a way of life that emphasizes health and wellness. Join and experience high-quality fitness at an affordable cost to enhance your life and be part of a healthier world.

More Flex Fitness apps to explore

4
Flex Fitness Woodland
Flex Fitness Woodland
Flex Fitness Woodland
by flex fitness woodland LLC
Free
πŸ’ͺ Health & Fitness
(2)
5
Flex Longevity
Flex Longevity
Flex Longevity
Ultimativni fitness doΕΎivljaj
Free
πŸ’ͺ Health & Fitness
(0)
6
Flex Fitness Club 24/7 Gym
Flex Fitness Club 24/7 Gym
Flex Fitness Club 24/7 Gym
by Treshna Enterprises
Free
πŸ’ͺ Health & Fitness
(0)
7
Ride SMART Flex
Ride SMART Flex
Ride SMART Flex
Ride On Demand with SMART!
Free

Get around the Detroit Area easily and sustainably with our on-demand ridesharing service. Book a ride, get picked up, share with others, and save while reducing carbon emissions. Experience convenience and affordability while making your city greener. Support email: support-smart@ridewithvia.com. Give us a 5-star rating if you love the service!

✈️ Travel
(2.2K)
8
The Flex Fitness
The Flex Fitness
The Flex Fitness
by Myanmar Lifestyle Company Limited
Free

The Flex Fitness app is a comprehensive fitness platform that allows users to conveniently book classes, manage their fitness experience, and stay on top of their wellness goals, all from the convenience of their mobile device. Download the app and unlock a seamless fitness journey.

πŸ’ͺ Health & Fitness
(3)
9
Flex Fitness Clubs
Flex Fitness Clubs
Flex Fitness Clubs
by Flex Fitness Club Inc.
Free

This fitness app helps you track workouts, meals, and progress towards your goals with the guidance of a personal trainer. It allows you to access training plans, monitor nutrition, set goals, and stay connected with your coach, all in one place, start achieving your fitness goals today!

πŸ’ͺ Health & Fitness
(0)
10
Peloton: Fitness & Workouts
Peloton: Fitness & Workouts
Peloton: Fitness & Workouts
Yoga, Cardio & Gym Training
Free

Revolutionize your workout routine with an innovative app that offers live and on-demand fitness classes led by top instructors. Join a community of like-minded individuals and elevate your fitness journey today!

πŸ’ͺ Health & Fitness
(810K)
11
Flex Inventory Management
Flex Inventory Management
Flex Inventory Management
by UniGroup, Inc.
Free

This mobile app helps van operators, motor carriers, and packers manage inventory on the go by creating a digital record of household goods and logistics shipments. With features like barcode scanning, voice-to-text, and digital paperwork, users can efficiently track and organize their shipments, and get started today by joining thousands of users who already use this tool.

πŸ’Ό Business
(46)
12
Fitness Coach - Workout Plan
Fitness Coach - Workout Plan
Fitness Coach - Workout Plan
Lose Weight, Build Abs & Butt
Free

Get personalized fitness plans tailored to your goals with the Fitness Coach app. Achieve your dream physique through custom workout routines and expert guidance. Start your fitness journey today!

πŸ’ͺ Health & Fitness
(73K)
13
Livble - Split your rent
Livble - Split your rent
Livble - Split your rent
Pay rent on your own schedule
Free

Split your rent easily with our app - pay your rent in flexible installments throughout the month. Take control of your rent payments with Livble today!

πŸ’° Finance
(1.8K)
14
Weight Lifting Tracker: WeFLEX
Weight Lifting Tracker: WeFLEX
Weight Lifting Tracker: WeFLEX
Fitness AI Weightlifting Coach
Free
πŸ’ͺ Health & Fitness
(136)
15
FitOn Workouts & Fitness Plans
FitOn Workouts & Fitness Plans
FitOn Workouts & Fitness Plans
Cardio, Yoga & Pilates classes
Free

Get in shape with personalized workout routines anytime, anywhere with our app. Access a variety of exercise programs and stay motivated towards your fitness goals. Download now for a healthier you!

πŸ’ͺ Health & Fitness
(283K)
16
Texas Flex Fitness
Texas Flex Fitness
Texas Flex Fitness
by Texas Flex Fitness LLC
Free
πŸ’ͺ Health & Fitness
(3)
17
Flex 'n Burn
Flex 'n Burn
Flex 'n Burn
30 Min CardioMuscular Workoutβ„’
Free

This fitness app allows users to book classes, buy passes, and manage their accounts on the go, offering a 30-minute cardio-muscular workout that combines high-tech machines and science-based training methods. With this app, users can experience a high-intensity interval training that can burn up to 950 calories in just 30 minutes.

πŸ’ͺ Health & Fitness
(243)
18
Decks: Friendly home workouts
Decks: Friendly home workouts
Decks: Friendly home workouts
Stretch, flex, sweat, do yoga!
Free

Get fit with Decks: Friendly home workouts! Enjoy easy home exercises with minimal equipment, synced with Apple Health, Music, and Watch. Start your journey to a healthier lifestyle today.

πŸ’ͺ Health & Fitness
(83)
19
Motra AI Workout Fitness Coach
Motra AI Workout Fitness Coach
Motra AI Workout Fitness Coach
Watch Gym Strength Training
Free

Train Fitness Workout Tracker is the ultimate gym companion for Apple Watch users, offering automatic exercise detection, rep counting, and performance monitoring. Simply start your workout and let the app track over 130 exercise types for you. Focus on your fitness journey, not on manual logging. Apple Watch 4 or newer required.

πŸ’ͺ Health & Fitness
(3K)
20
Google Health (Fitbit)
Google Health (Fitbit)
Google Health (Fitbit)
Activity, Sleep & Nutrition
Free

Track your daily activity, monitor your heart rate, improve sleep quality, and set personal fitness goals with this comprehensive health and fitness application. Take charge of your well-being today!

πŸ’ͺ Health & Fitness
(43K)

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