Comparison

Flex vs Gym Tracker & Log

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

Head to head
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

About

Gym Tracker & Log

This app helps you track your weightlifting progress with unlimited routines and workout logs. It offers detailed analytics, automatic progression, and a comprehensive exercise library, all stored locally and synced via iCloud. Enjoy a feature-rich, ad-free experience designed for serious lifters.

Highlights
  • Unlimited workout routines and logs
  • Full workout history stored forever
  • Workout plans and plan creator
  • Automatic progression and warmup sets
  • RIR/RPE tracking and advanced charts
  • Progress photos and body measurements
  • Apple Health sync
Features
Read full description

Gym tracker and workout log built by a lifter, for lifters. Unlimited routines and workouts, your full history forever, no ads, no paywall spam. My mission is to deliver a workout log app that will help you make progress, build strength, and ensure hypertrophy, all that for free. I will never change a free feature to a paid one, spam the paywall, limit routines or workout logs, etc. (all the bad stuff other workout trackers do). What sets Strive apart: - Create unlimited workout routines, most trackers paywall this - Your full history, forever - every workout, set and chart since day one, no history limit. During a workout tap any exercise to see its history and your previous numbers - Your data stays yours - stored on your phone, backed up to iCloud, and you can create a manual backup anytime - Workout plans: 33 ready-made programs (nSuns, PHUL, Reddit PPL, 5x5, Arnold Split and more), a plan creator that builds a plan for you from a short survey, or your own plan with workouts assigned to days or in order - Plan summary - when a plan ends you get a progress analysis and recommendations - Automatic progression - turn it on in a routine and the app raises the weight or reps for the next workout, advanced rules are still there for the nerds - Automatic warmup sets, per exercise - RIR/RPE tracking with effective reps metric - Advanced charts, analyze routine, body part or exercise progress - Personal records and estimated 1RM for every exercise - Progress photos, compare them side by side - Measurements and body proportions, see how you compare to ideal ranges - Rest timer per exercise or per routine, visible on the lock screen - Home screen widgets and a personalizable dashboard, choose from many widgets in various sizes and have all the data at a glance - Plate calculator with your own plates and bars - Gear - assign straps, belts or sleeves to routines and never forget them again - Placeholder exercise - pick a category or body part and choose the actual exercise during the workout, based on how you feel or what's free at the gym - Custom keyboard to input workout data frictionlessly, copy values from the previous set, set a value for all sets, increment and decrement - Apple Health sync - import cardio and bodyweight, send your workouts to Health - Share workouts and routines with friends or followers, cardio share cards with your GPS route - PT report - send your coach a clean summary of your training - Mark workouts as deloads to better understand and analyze the data - Fully offline - I know some gyms have poor reception - Wrapped, see your year in review at the end of the year - Themes & theme creator - No ads, no selling your data, no tracking across apps Rest of the features that you would expect: - Exercise database with 335 exercises, animations and technique tips - Notes - All set types: warmup, dropset, myo reps etc. - Workout finish reminder - never again open the app to see that you have not saved the previous workout - Plan workout reminders - Dark mode I hope my app will help you achieve your goals, in general, just progress and get better. I promise to develop this app until it is your favorite gym log and workout tracker app. Remember, we all are gonna make it! Your gym bro, Artur. _________________________________________ Terms of Use: https://strive-workout.com/terms-conditions/ Privacy Policy: https://strive-workout.com/privacy-policy/

Screenshots

Flex4 screens
Gym Tracker & Log4 screens

Verdict

The call

The clearest difference is rating: Gym Tracker & Log at 4.9 against Flex's 4.2. Gym Tracker & Log also leads on ratings volume (889 vs 5) and review sentiment (99% vs 75%). Flex's advantage is in-app purchases (none vs 7) and iOS requirement (14.0 vs 16.2). On price, ads, monetization model and device support 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. Gym Tracker & Log sells 7 in-app purchases, starting at $6.99 per month. Flex asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Gym Tracker & Log holds the better App Store score, 4.9 against 4.2. That said, the two scores are not equally well evidenced: Gym Tracker & Log has 889 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 75% of Flex's written reviews are positive against 99% of Gym Tracker & Log's.

UpkeepUpdate frequency

Flex ships an update fortnightly, Gym Tracker & Log every 6 days. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

Scorecard6 real differences · 4 level
Flex versus Gym Tracker & Log: the parameters behind the verdict, then further details
ParameterFlexGym Tracker & Log
PriceFreeFree
Rating4.2 (5 ratings)4.9 (889 ratings) — better
Positive reviews75.0% of reviews98.7% of reviews — better
Number of ratings5889 — better
Update frequencyFortnightlyEvery 6 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFreeFree
DevicesiPhone, iPod — betteriPhone
Requires iOS14.0 — better16.2
Further details — not scored
Size5 MB244 MB
Age rating4+4+
DeveloperDino ConstantinouArtur Fijal

Customer experience

Flex

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

Gym Tracker & Log

All ratings889 ratings
Positive99.0%
Neutral0.7%
Negative0.3%
Written reviews386 reviews
Positive98.7%
Neutral1.0%
Negative0.3%

Bugs and requests

Flex

Not enough reviews yet to summarise bugs or requests.

Gym Tracker & Log

Reported bugs

2 issues
  • Occasional issues with saving workouts
  • Timer not always functioning properly when other apps are running

Requested features

5 requests
  • Ability to sync data across devices
  • Addition of body measurements tracking (waist, legs, etc.)
  • Inclusion of a plate calculator
  • Option to log one-arm exercises separately
  • Ability to delete or reorder exercises in a workout

In-app purchases

None

Flex

No in-app purchases

7 purchases

Gym Tracker & Log

Subscriptions2
  • Unlimited access$6.991 Month
  • Unlimited access$39.991 Year
One-time5
  • Theme cotton candy$3.79
  • Theme cotton candy dark$3.79
  • Theme Cherry Blossom$3.79
Show 2 more
  • Theme beige$3.99
  • Unlimited access$139.99

Questions

Is Flex free?
Flex is free to download, with no in-app purchases.
Is Gym Tracker & Log free?
Gym Tracker & Log is free to download, with in-app purchases available.
Which has better reviews, Flex or Gym Tracker & Log?
Gym Tracker & Log is rated higher. Flex averages 4.2 out of 5 from 5 ratings, while Gym Tracker & Log averages 4.9 from 889 ratings.
Do Flex or Gym Tracker & Log have ads?
Neither Flex nor Gym Tracker & Log shows ads.
Which is updated more often, Flex or Gym Tracker & Log?
Flex ships an update fortnightly, and Gym Tracker & Log every 6 days. Most recently, Flex was updated on November 1, 2026 and Gym Tracker & Log on November 3, 2026.

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