Flex vs Gym log
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Workout plan creation
- Rep and weight tracking
- Rest timers
- Exercise progress monitoring
- Apple Health sync
- Customizable units (KG/LB)
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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
Gym log
This free workout tracker helps you build strength and muscle with unlimited routines, progressive overload tracking, and advanced analytics. It offers offline functionality, personalized dashboards, and seamless data input for a friction-free training experience.
- Unlimited workout routines
- Progressive overload tracking
- Advanced analytics and charts
- Offline functionality
- Personalizable dashboard
- Frictionless data input
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My mission is to deliver a workout training log app that will help you make progress, build strength, and ensure hypertrophy, all that for free. I will never change the free feature to a paid one, spam the paywall, limit routines or workout logs, etc. (all the bad stuff other workout trackers do). What stands Strive apart: - Create unlimited workout routines, most trackers paywall this - Crate workout plans, assign workouts to days or in an order - Share your workouts with your friends or followers - train together without paying - Set weight or reps for the next workount and ensure progressive overload, go get those gains - RIR/RPE tracking with effective reps metric - Sync cardio and bodyweight with Health so you don't have to input the data manually - Mark workouts as deloads to better understand and analyze the data - Advanced charts without paywall, analyze routine, bodypart or exercise progress - Fully offline - I know some gyms have poor reception - Rest timer personalizeable per exercise - Personalizable dashboard - Choose from many widgets in various sizes to compose your dashboard, just like your phone's homescreen. Have all the data visible at a glance! - Placeholder exercise, select exercise category and bodypart or a group of exercises and then select the actual exercise when working out, based on the feelings or what's free at the gym - Custom keyboard to input workout data frictionlessly, allows to copy value from previous set, set value to all sets, and increment and decrement value - Wrapped, see your year in review at the end of the year - Themes & theme creator - Privacy first - no data tracking - No ads Rest of the features that you would expect: - Measurements and weight ins - Notes - Backup - never loos your data - Prs - Use all the set types, warmup, dropset, myo reps etc - Workout finish reminder - never again open an app to see that you have not saved the previous training - Dark mode - Exercise database 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
Verdict
The clearest difference is rating: Gym log at 4.9 against Flex's 4.2. Gym log also leads on ratings volume (838 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
Both are free to download. Gym log sells 7 in-app purchases, starting at $6.99 per month. Flex asks for nothing beyond the download.
Gym log holds the better App Store score, 4.9 against 4.2. That said, the two scores are not equally well evidenced: Gym log has 838 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 log's.
Flex ships an update fortnightly, Gym log every 4 days. The most recent releases landed on September 11, 2026 and September 24, 2026 respectively.
| Parameter | Flex | Gym log |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (5 ratings) | 4.9 (838 ratings) — better |
| Positive reviews | 75.0% of reviews | 98.7% of reviews — better |
| Number of ratings | 5 | 838 — better |
| Update frequency | Fortnightly | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | Free |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 14.0 — better | 16.2 |
| Further details — not scored | ||
| Size | 5 MB | 219 MB |
| Age rating | 4+ | 4+ |
| Developer | Dino Constantinou | Artur Fijal |
Customer experience
Flex
Gym log
Bugs and requests
Flex
Not enough reviews yet to summarise bugs or requests.
Gym 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
Flex
No in-app purchases
Gym log
- Unlimited access$6.991 Month
- Unlimited access$39.991 Year
- Theme cotton candy$3.79
- Theme cotton candy dark$3.79
- Theme Cherry Blossom$3.79
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- Theme beige$3.99
- Unlimited access$139.99









