Comparison

JEFIT Workout Plan Gym Tracker vs Flex

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

JEFIT Workout Plan Gym Tracker

This app helps you achieve fitness goals with personalized workout plans, detailed exercise instructions, and progress tracking. Log your weight, reps, and sets, and gain insights into your training effectiveness. It supports strength tracking and syncs with Apple Health and smartwatches.

Highlights
  • Personalized daily workout plans
  • 1,400+ exercises with HD video
  • Workout logging and progress tracking
  • 1RM & strength analytics
  • Sync with Apple Health
  • Smartwatch integration
  • AI-powered progressive overload
Features
Read full description

Get Fit and Strong with JEFIT: Your Reliable Gym Planner and Workout Tracker JEFIT is the ultimate workout tracker to plan your strength training, log workouts, and track exercise progress. Whether you want a simple gym log to track your weights and reps, or a smart, AI-guided routine that tells you exactly what to lift next—JEFIT makes your fitness journey easy-no guesswork. Join over 12 million people training smarter with JEFIT -- the free workout tracker, gym log, and strength training planner. WHAT USERS ARE SAYING “Really helpful for the gym. gives good suggestions and makes it easy to log and see progress. the calendar view makes it easy to see what you did previous days as well. I will always use a tracker going forward.” – Stuart Norris “Very useful app. You can create routine program, remember Weights you lifted last time…” – ammarimohamed “The app is super reliable. I have been using it for over 6 years now. using the suggestions and following the exact form built in to this app, i have made huge progress reducing fat and building muscle” – Amarprit Dhaliwal “It is exactly what I was looking for. User-friendly. Detailed data entry possible, without being over-complicated.” – VeerleC01 CORE FEATURES 1. SMART LOGGING & WORKOUT PLANNER • Log your training with an intuitive, easy-to-use, and user-friendly interface • A library of 1,400+ exercises with HD video instructions and animations to help you nail your form • Build your own custom workouts and exercises • Group exercises into supersets, and set a custom rest timer, stopwatch, or countdown for any exercise • Tag sets as warm-up, working, drop, or failure • Download and follow the built-in bodybuilding programs • Add notes and progress photos to any workout • Start an instant workout anywhere — set your time, equipment, and muscle focus, no fixed gym required 2. PERSONALIZED ADAPTIVE PLAN & PROGRESSIVE OVERLOAD • Adaptive Plan: a personalized training plan built around your goal, level, and equipment — powered by AI and backed by mesocycle and progressive overload science,so you just follow it, no guesswork,while it adapts every week as you progress - Built-in AI-powered progressive overload system: JEFIT’s smart AI analyzes your past workout logs to suggest exactly what weight and reps to lift next. 3. DEEP ANALYTICS & PROGRESS TRACKING • Track your progress with clear charts for volume, muscle focus, weekly sets per muscle, and movement balance • Get automatic One Rep Max(1RM) calculation for every exercise to visualize your strength growth • A detailed muscle map of your training – see what muscles you're focusing on • See a muscle recovery chart — decides which muscles are ready to train, and which still need rest • Track body weight, body fat, and measurements — waist, chest, arms, legs, and more 4. APPLE WATCH & iOS INTEGRATION • Live-sync your workout between JEFIT and your Apple Watch • Track your heart rate and calories burned as you train • See your set count and rest timer right on your lock screen • Add a widget to jump straight into today's workout JEFIT ELITE Upgrade to JEFIT Elite to unlock our most powerful, science-backed training tools designed to accelerate your results: • Adaptive AI Coach • Premium Analytics Dashboard • Elite Routine Library • Pro Training Tools PRICING & SUBSCRIPTION DETAILS: • Monthly: $12.99 / month • Yearly: $69.99 / year (Save over 55%) Payment will be charged to your iTunes Account at confirmation of purchase. Subscriptions automatically renew unless canceled at least 24 hours before the end of the current period. Manage or turn off auto-renewal anytime in your Apple ID Account Settings after purchase. TERMS AND PRIVACY: https://www.jefit.com/terms-of-use/ https://www.jefit.com/privacy-policy/ Download JEFIT today to start tracking your progress and crush your fitness goals!

About

Flex

This app helps strength training enthusiasts track their workouts. Create custom plans, log reps and weight, and monitor progress with a dashboard and rest timers. It syncs with Apple Health.

Highlights
  • Workout plan creation
  • Rep and weight tracking
  • Rest timers
  • Exercise progress monitoring
  • Apple Health sync
  • Customizable units (KG/LB)
Features
Read full description

Flex is a simple yet powerful workout tracker that has been designed for anyone who engages in strength training. Effortlessly create workout plans, track workouts, and browse previous workouts all with a simple and intuitive user interface. Features: - Useful dashboard that shows all time statistics, recent workouts, and the next workout in your current workout cycle - Create custom workout plans for any kind of program (such as Starting Strength or StrongLifts 5×5) - Duplicate existing workout plans which make it easy to create similar plans with slight variations - Track reps and weight performed for each exercise during a workout and compare them the last workout - great for pushing yourself. - Automatic and customisable rest timers that are triggered automatically when completing each set - Comprehensive exercise list to choose from when creating workouts - Create custom exercises for your workouts - Choose between metric (KG) and imperial (LB) units for sets - View your complete chronological workout history - Keep track of your exercise progress and personal bests - Automatically sync workouts with Apple Health

Screenshots

JEFIT Workout Plan Gym Tracker4 screens
Flex4 screens

Verdict

The call

The clearest difference is rating: JEFIT Workout Plan Gym Tracker at 4.8 against Flex's 4.2. JEFIT Workout Plan Gym Tracker also leads on ratings volume (47K vs 5) and update cadence (every 5 days vs fortnightly). Flex's advantage is in-app purchases (none vs 15) and ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. JEFIT Workout Plan Gym Tracker sells 13 in-app purchases, starting at $6.99 per month. Flex asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

JEFIT Workout Plan Gym Tracker holds the better App Store score, 4.8 against 4.2. That said, the two scores are not equally well evidenced: JEFIT Workout Plan Gym Tracker has 47K ratings behind it against 5, so its average is the more settled of the two. Written reviews complicate that: 57% of JEFIT Workout Plan Gym Tracker's written reviews are positive against 75% of Flex's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

JEFIT Workout Plan Gym Tracker ships an update every 5 days, Flex fortnightly. The most recent releases landed on September 25, 2026 and September 11, 2026 respectively.

Scorecard8 real differences · 3 level
JEFIT Workout Plan Gym Tracker versus Flex: the parameters behind the verdict, then further details
ParameterJEFIT Workout Plan Gym TrackerFlex
PriceFreeFree
Rating4.8 (47K ratings) — better4.2 (5 ratings)
Positive reviews57.4% of reviews75.0% of reviews — better
Number of ratings47K — better5
Update frequencyEvery 5 days — betterFortnightly
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
Best chart rank#188 — better—
DevicesiPhone, iPod, Apple Watch — betteriPhone, iPod
Requires iOS15.014.0 — better
Further details — not scored
Size282 MB5 MB
Age rating17+4+
DeveloperJefit Inc.Dino Constantinou

Customer experience

JEFIT Workout Plan Gym Tracker

All ratings46,883 ratings
Positive95.6%
Neutral1.9%
Negative2.5%
Written reviews1,138 reviews
Positive57.4%
Neutral11.3%
Negative31.3%

Flex

All ratings5 ratings
Positive80.0%
Neutral0.0%
Negative20.0%
Written reviews12 reviews
Positive75.0%
Neutral0.0%
Negative25.0%

Bugs and requests

JEFIT Workout Plan Gym Tracker

Reported bugs

4 issues
  • Workouts not saving properly
  • Incorrect weight/rep logging
  • Freezing and crashing issues
  • Sync failures and data loss

Requested features

5 requests
  • Improved Apple Watch integration
  • Ability to reset workout data
  • Better progress visualization
  • Custom exercise creation improvements
  • Seamless cardio tracking

Flex

Not enough reviews yet to summarise bugs or requests.

In-app purchases

13 purchases

JEFIT Workout Plan Gym Tracker

Subscriptions13
  • (Legacy Pricing) Elite2 variants$6.991 Month
  • Elite Monthly Subscription$12.991 Month
  • Elite Yearly Subscription$19.991 Year
Show 10 more
  • Elite Yearly Subscription$29.991 Year
  • Elite Yearly Subscription$34.991 Year
  • Elite Yearly Subscription$35.991 Year
  • (Legacy Pricing) Elite2 variants$39.991 Year
  • Elite Yearly Subscription$52.991 Year
  • Elite Yearly Subscription$62.991 Year
  • Elite Yearly Subscription$69.991 Year
  • Elite Yearly Subscription7 Days trial$69.991 Year
  • Elite Yearly (intro offer)1 Year trial$69.991 Year
  • Elite Yearly (50% off)1 Year trial$69.991 Year
None

Flex

No in-app purchases

Questions

Is JEFIT Workout Plan Gym Tracker free?
JEFIT Workout Plan Gym Tracker is free to download, with in-app purchases available.
Is Flex free?
Flex is free to download, with no in-app purchases.
Which has better reviews, JEFIT Workout Plan Gym Tracker or Flex?
JEFIT Workout Plan Gym Tracker is rated higher. JEFIT Workout Plan Gym Tracker averages 4.8 out of 5 from 47K ratings, while Flex averages 4.2 from 5 ratings.
Do JEFIT Workout Plan Gym Tracker or Flex have ads?
JEFIT Workout Plan Gym Tracker shows ads; Flex does not.
Which is updated more often, JEFIT Workout Plan Gym Tracker or Flex?
JEFIT Workout Plan Gym Tracker ships an update every 5 days, and Flex fortnightly. Most recently, JEFIT Workout Plan Gym Tracker was updated on September 25, 2026 and Flex on September 11, 2026.

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