Best Flex Fitness Training Apps

249+ iOS apps curated and reviewed

4.7 avg rating
20 free apps
Updated October 2026

Flex AI Workout Trainer & Log is the household name in flex fitness training, 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 Flex Fitness Training Apps (October 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Flex AI Workout Trainer & LogFlex AI Workout Trainer & LogFree4.6★ (2.4K)NoYesOct 2026
2Fitplan®: Gym & Home WorkoutsFitplan®: Gym & Home WorkoutsFree4.8★ (11K)NoYesOct 2026
3Flex Studio LKFlex Studio LKFree—NoNoSep 2026
4Flexfit Training CenterFlexfit Training CenterFree—NoNoMay 2026
5Flex Fitness Dodge CityFlex Fitness Dodge CityFree——NoJul 2026
6Stretch Plus FlexStretch Plus FlexFree—NoNoSep 2026
7Flex Fitness Jungle GymFlex Fitness Jungle GymFree—YesNoMay 2026
8FLEX Health & FitnessFLEX Health & FitnessFree——NoSep 2026

Top Picks for Flex Fitness Training

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
  • 👍 Clean and intuitive interface
  • 🚀 Seamless Apple Watch integration

Room to Improve

  • 🐛 Glitches and bugs
  • 💰 Expensive premium subscription
  • 🔒 Limited functionality without premium
  • 🐛 Inconsistent rest timer
  • 🐛 Workout data loss
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
  • 👍 Tracks progress and weights
  • 👍 Affordable compared to personal trainer

Room to Improve

  • 🐛 App crashes and freezes
  • 🐛 Bugs with saving workouts and progress
  • 🐛 Videos not loading properly
  • 🐛 Unreliable timers and tracking
  • 🐛 Lack of customization and flexibility
  • 🐛 Frequent app updates with new issues

More Flex Fitness Training apps to explore

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 October 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 October 2026.
We track 249+ flex fitness training apps on the iOS App Store as of October 2026, ranked by rating, recency, and analysis of real user reviews.