Comparison

Strong Workout Tracker Gym Log vs Flexer

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

Head to head
About

Strong Workout Tracker Gym Log

This app helps you track your workouts and progress with an intuitive interface. It offers a wide range of exercises, detailed instructions, and advanced statistics to help you achieve your fitness goals. Easily log your routines, monitor personal records, and stay motivated on your fitness journey.

Highlights
  • Intuitive workout logging
  • Comprehensive exercise library
  • Apple Watch integration
  • Advanced progress statistics
  • Customizable routines
  • Cloud data backup
Features
Read full description

The most intuitive workout and exercise tracker for any fitness routine. Strong is the simplest and most intuitive workout tracker, designed to help you get better results from your workouts. Whether you want to gain strength or just stay healthy, join over 1.2 million people who have downloaded Strong to stay on track in the gym. “I’d suggest downloading the “Strong” app before you return to the gym. It’s that good” - CNBC “with apps like Strong, working out feels more like a game” - The Verge “I have used nearly every logging app since the App Store launched. This is the best bar none” “I use this every time I go to the gym and seriously couldn't train without it” “Simple. Intuitive. Functional. Exactly what I was looking for.” “This is bare bones and serious. Right on, and works perfectly... I wish I could give 10 stars.” “It's by far the most intuitive and easy to use workout app I’ve used.” Whether you’re a beginner or an experienced powerlifter, Strong provides everything you need to record your workouts as effortlessly and as quickly as possible. Unlike other fitness apps, Strong doesn’t bog you down with distractions and unnecessary gimmicks you’d never use. Strong is optimized for a progressive barbell routine such as Starting Strength or StrongLifts 5x5, but it is easily adaptable to any other routine of your choosing! FEATURES: • The simplest interface of any fitness app in the App Store • A comprehensive range of cardio and strength exercises - and add your own too! • Fully-featured Apple Watch app to log workouts with or without your iPhone • Add your own routines and easily choose between them • Detailed exercise instructions with a growing library of animated videos • Advanced Statistics show your personal records and progression and even calculate your one rep max and total weight lifted! • Built in Auto Countdown Timer to help record rest breaks • Support for multiple Exercise Types, including Assisted Bodyweight and Duration Exercises • Tag sets as Warm Up, Failure or Drop Sets • Supersets/Grouped Exercises • Track your progress with graphs for Volume and 1RM Progression • Automatically back up your data with Cloud Sync! • Built in body measurements tracker to record your weight and other vitals, with support for Apple Health • Warm Up Calculator tells you which weights to warm up with • Plate Calculator for when the weights get high • Support for Imperial (lbs) and Metric (kg) weights, or a combination of both • Add notes and progress pictures to your workouts • Share sheet makes sharing routines and workouts with friends easier than ever! • Export all of your data to Notes or Email in CSV format The free version of Strong can save unlimited workouts, but is limited to 3 custom routines. Upgrade to a Strong PRO subscription ($4.99/month or $29.99/year) for an unlimited number of routines and to unlock additional PRO features. Strong will automatically charge your iTunes Account at the end of your subscription or free trial period unless auto-renew is turned off at least 24 hours before the end of your current period. Subscriptions renew at the original price. You can turn off auto-renew at any time and still receive full functionality until the end of your current period, but no refund can be provided for unused portions of the subscription. Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable. If you’ve previously purchased “Unlock Strong” or “Strong Combo Pack”, you’ll be able to use the Restore Purchases option in the app for access to all Strong PRO features. These prices are for customers in the United States and may vary depending on your iTunes Account settings. In-app purchases and subscriptions cannot be shared using Family Sharing. Strong Terms of Service - https://help.strongapp.io/article/179-strong-terms-of-service Strong Privacy Policy - https://www.iubenda.com/privacy-policy/7760215

About

Flexer

This app makes tracking gym workouts engaging and simple. Log sets, reps, and weights effortlessly, access a large exercise library, and visualize your progress with charts. Gamified elements like trophies and streaks keep you motivated to achieve your fitness goals.

Highlights
  • Vast exercise library with instructions
  • Effortless workout logging
  • Progress visualization with charts
  • Gamified fitness experience
  • Trophy and streak system
  • Personal record tracking
Features
Read full description

Get addicted to working out. Flexer revolutionizes your gym experience, transforming fitness tracking into an engaging and rewarding journey. With its sleek, intuitive interface, Flexer simplifies the entire workout process, making it accessible for beginners and indispensable for seasoned lifters alike. Vast Exercise Library: Access over 300 expertly curated exercises, complete with detailed instructions and muscle targeting information. Whether you're into powerlifting, bodybuilding, or general fitness, Flexer has you covered. Effortless Workout Tracking: Log your sets, reps, and weights with just a few taps. Flexer's user-friendly design ensures you spend less time on your phone and more time crushing your workout. Progress Visualization: Watch your fitness journey unfold with beautiful, easy-to-understand charts and graphs. Track your personal records (PRs) for each exercise and see your strength grow over time. Gamified Fitness Experience: Earn trophies for hitting milestones, keep your motivation high with streaks, and dive into in-depth exercise stats that help you optimize your routine. Flexer transforms every workout into a challenge, motivating you to push your limits and celebrate your achievements. Get addicted to working out as you rack up wins and track your progress like never before. Download Flexer today and turn your workouts into a game that you’ll want to keep playing.

Screenshots

Strong Workout Tracker Gym Log4 screens
Flexer4 screens

Verdict

The call

The clearest difference is review sentiment: Flexer at 95% against Strong Workout Tracker Gym Log's 65%. Flexer also leads on update cadence (every 2 days vs every 2 weeks). Strong Workout Tracker Gym Log's advantage is ratings volume (108K vs 28) and rating (4.9 vs 4.7). On price, ads, in-app purchases and monetization model 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. Strong Workout Tracker Gym Log sells 11 in-app purchases, starting at $3.99 per month and Flexer sells 11 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Strong Workout Tracker Gym Log holds the better App Store score, 4.9 against 4.7. That said, the two scores are not equally well evidenced: Strong Workout Tracker Gym Log has 108K ratings behind it against 28, so its average is the more settled of the two. Written reviews complicate that: 65% of Strong Workout Tracker Gym Log's written reviews are positive against 95% of Flexer's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Strong Workout Tracker Gym Log ships an update every 2 weeks, Flexer every 2 days. The most recent releases landed on September 24, 2026 and September 3, 2026 respectively.

Scorecard7 real differences · 4 level
Strong Workout Tracker Gym Log versus Flexer: the parameters behind the verdict, then further details
ParameterStrong Workout Tracker Gym LogFlexer
PriceFreeFree
Rating4.9 (108K ratings) — better4.7 (28 ratings)
Positive reviews65.2% of reviews94.7% of reviews — better
Number of ratings108K — better28
Update frequencyEvery 2 weeksEvery 2 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFree with in-app purchases
Best chart rank#60 — better
DevicesiPhone, iPod, Apple Watch — betteriPhone
Requires iOS15.0 — better17.5
Further details — not scored
Size129 MB123 MB
Age rating4+4+
DeveloperStrong Fitness PTE LimitedTrembath Apps LLC

Customer experience

Strong Workout Tracker Gym Log

All ratings108,483 ratings
Positive97.8%
Neutral1.0%
Negative1.3%
Written reviews1,298 reviews
Positive65.2%
Neutral10.5%
Negative24.3%

Flexer

All ratings28 ratings
Positive92.9%
Neutral0.0%
Negative7.1%
Written reviews19 reviews
Positive94.7%
Neutral0.0%
Negative5.3%

Bugs and requests

Strong Workout Tracker Gym Log

Reported bugs

3 issues
  • Workouts not syncing properly between devices
  • Exercises disappearing from saved routines
  • Crashes and stability issues, especially on Apple Watch

Requested features

5 requests
  • Add ability to track body part volume and focus
  • Improve exercise search and categorization
  • Implement more advanced analytics and reporting
  • Allow pausing of workouts on Apple Watch
  • Add support for more workout types (e.g. cardio)

Flexer

Not enough reviews yet to summarise bugs or requests.

In-app purchases

11 purchases

Strong Workout Tracker Gym Log

Subscriptions6
  • Strong PRO1 Month trial$3.991 Month
  • Strong PRO (1 Month)1 Month trial2 variants$4.991 Month
  • Strong PRO (6 Months)1 Month trial$19.996 Months
Show 3 more
  • Strong PRO (1 Year)$23.991 Year
  • Strong PRO (1 Year)$29.991 Year
  • Strong PRO (1 Year)2 Months trial$29.991 Year
One-time5
  • Power Pack (Legacy)$3.99
  • Unlock Strong (Legacy)$4.99
  • Unlock + Power Pack (Legacy)$6.99
Show 2 more
  • Strong PRO Forever$79.99
  • Strong PRO Forever$99.99
11 purchases

Flexer

Subscriptions11
  • Flexer$4.997 Days
  • Flexer7 Days trial$4.997 Days
  • Flexer Monthly$9.991 Month
Show 8 more
  • Flexer Pro Monthly7 Days trial$11.991 Month
  • Flexer$14.991 Month
  • Flexer monthly$19.991 Month
  • Flexer Yearly$59.991 Year
  • Flexer Pro Yearly7 Days trial$69.991 Year
  • Flexer$89.991 Year
  • Flexer7 Days trial$95.991 Year
  • Flexer Yearly$95.991 Year

Questions

Is Strong Workout Tracker Gym Log free?
Strong Workout Tracker Gym Log is free to download, with in-app purchases available.
Is Flexer free?
Flexer is free to download, with in-app purchases available.
Which has better reviews, Strong Workout Tracker Gym Log or Flexer?
Strong Workout Tracker Gym Log is rated higher. Strong Workout Tracker Gym Log averages 4.9 out of 5 from 108K ratings, while Flexer averages 4.7 from 28 ratings.
Do Strong Workout Tracker Gym Log or Flexer have ads?
Neither Strong Workout Tracker Gym Log nor Flexer shows ads.
Which is updated more often, Strong Workout Tracker Gym Log or Flexer?
Strong Workout Tracker Gym Log ships an update every 2 weeks, and Flexer every 2 days. Most recently, Strong Workout Tracker Gym Log was updated on September 24, 2026 and Flexer on September 3, 2026.

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