Comparison

GymBook ・ Strength Training vs Efort

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

Head to head
About

GymBook ・ Strength Training

Create, log, and analyze your gym workouts with this comprehensive fitness app. It offers custom exercise creation, detailed logging, and insightful performance analytics with interactive graphs. Track progress, sync data, and time your rests efficiently.

Highlights
  • Create custom workouts and exercises
  • Log sets, weight, and reps
  • Track workout progress with graphs
  • Adjustable rest timer
  • Sync data with Health app and Strava
  • Body measurement tracking
Features
Read full description

Here is GymBook, your fitness app to efficiently create, log and analyze your workouts at the gym - all in a beautiful and minimalist user interface. MANAGE YOUR WORKOUTS • Create your workout with your own exercises or choose from the 50+ simple exercises with animated images and visualizations of the affected primary and secondary muscle groups • Group and sort your exercises within a workout • Define the sets, weight and reps you want to perform for each exercise • Define different settings for your sets of an exercise (e.g. for warm up sets or pyramid training) • Archive workouts you don't actively use and keep them for statistics or for later use MANAGE YOUR EXERCISES • Edit the preloaded exercises • Create your own exercises (cardio and stretching exercises also supported) • Assign a region, primary and secondary muscle groups, equipment and write down notes for your exercises • Add a photo to your exercises WORK OUT! • Fast logging and tracking of your workout • Log your workout on your wrist with GymBook for Apple Watch • Extend your logs with notes to add additional information • Immediately see how you did last time • Use the pre-filled picker views for fast logging and Quick-Log for super fast logging • Quickly access logs from within a workout, including the graphical statistics • Change the workout date (if you want to log previous workouts) • Immediately see your exercise statistics in a configurable, interactive line graph • Move automatically to the next exercise of your workout after saving a log (configurable) • The workout screen immediately shows a detailed overview about today's workout • The innovative "Workout Matrix" gives you always a detailed overview about your current workout • Live Activities show your current workout right on your Lock Screen or on your Dynamic Island • After completing a workout, a summary shows your performance as well as your heat map and lets you analyze your progress compared to last time • Completed workouts are saved to the Health app (with date, start time, end time, duration, name and optionally active calories and heart rate) and to Strava MORE... • Time your rests with the adjustable timer which also works when you set your device to sleep or close your app: you can configure your preferred timer duration, have a primary and a secondary timer (even specific to an exercise), choose between a classic or a graphical timer, have different timer sounds and more • Receive a detailed analysis of your performance thanks to the interactive line graphs, doughnut charts, and/or radar charts • Track your body measurements and analyze your progress in interactive line graphs: some body measurements (weight, height, body fat percentage and waist circumference) will also be synced with the Health app • Export your logs as XML and CSV file and export a backup as a database file • Synchronize your data with iCloud • Change the appearance of GymBook and choose from one of 9 great designs, each one available in both light and dark mode *Some special functions can be activated with GymBook Pro. SUPPORT: GymBook supports metric (kilograms, meters) and imperial (pounds, feet) system of units. NOTE: GymBook is developed by gym experts, for gym experts. Therefore it focuses on YOUR workouts and provides only example workouts for better orientation. TERMS OF USE: https://gymbookapp.com/terms.

About

Efort

This application is designed for powerlifting athletes to enhance their performance. It offers custom program creation, performance insights, and optional integration with coaches.

Highlights
  • Custom program creation
  • Performance insights
  • Optional coach integration
  • 100% free
Features
Read full description

Efort: Powerlifting Training Efort is built for powerlifting athletes aiming to optimize performance—whether you work with a coach on Efort Coach or craft your own program. It’s 100% free. Key Features • Custom Programs • Performance Insights • Optional Coach Integration Take your powerlifting to the next level—download Efort and train like the best! Contact Us • Instagram: https://www.instagram.com/efortapp • Email: info@efortcoach.com

Screenshots

GymBook ・ Strength Training4 screens
Efort4 screens

Verdict

The call

The clearest difference is in-app purchases: Efort at none against GymBook ・ Strength Training's 13. GymBook ・ Strength Training's advantage is ratings volume (2.4K vs 15) and device support (3 vs 1). On price, rating, review sentiment and update cadence 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. GymBook ・ Strength Training sells 13 in-app purchases, starting at $1.99 per month. Efort asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.8 for GymBook ・ Strength Training against 4.8 for Efort. That said, the two scores are not equally well evidenced: GymBook ・ Strength Training has 2.4K ratings behind it against 15, so its average is the more settled of the two. Written reviews are what separate them: 95% of GymBook ・ Strength Training's written reviews are positive against 100% of Efort's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on September 22, 2026 and September 19, 2026 respectively.

Scorecard4 real differences · 6 level
GymBook ・ Strength Training versus Efort: the parameters behind the verdict, then further details
ParameterGymBook ・ Strength TrainingEfort
PriceFreeFree
Rating4.8 (2.4K ratings)4.8 (15 ratings)
Positive reviews94.6% of reviews100.0% of reviews — better
Number of ratings2.4K — better15
Update frequencyWeeklyWeekly
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, Apple Watch — betteriPhone
Requires iOS16.416.0 — better
Further details — not scored
Size389 MB70 MB
Age rating4+4+
DeveloperAppwise GmbHEFORT SYSTEMS S.L.

Customer experience

GymBook ・ Strength Training

All ratings2,421 ratings
Positive95.5%
Neutral2.3%
Negative2.2%
Written reviews409 reviews
Positive94.6%
Neutral1.7%
Negative3.7%

Efort

All ratings15 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

GymBook ・ Strength Training

Reported bugs

2 issues
  • Occasional syncing issues with Apple Watch
  • Workout data sometimes recorded on wrong day

Requested features

6 requests
  • Add ability to copy/duplicate workouts
  • Implement calendar view for workout history
  • Allow manual entry of weights/reps instead of scrolling
  • Integrate body measurement tracking and progress graphs
  • Add more pre-made workout templates and routines
Show 1 more
  • Implement calisthenics and cardio exercise support

Efort

Not enough reviews yet to summarise bugs or requests.

In-app purchases

13 purchases

GymBook ・ Strength Training

Subscriptions2
  • GymBook Pro · Monthly7 Days trial$1.991 Month
  • GymBook Pro · Yearly14 Days trial$8.991 Year
One-time11
  • Timer+$3.99
  • Themes$3.99
  • Export$3.99
Show 8 more
  • Assistant$3.99
  • Cloud$3.99
  • Bronze ・ Package$5.99
  • +Exercises ・ Feature$5.99
  • Silver ・ Package$6.99
  • Gold ・ Package$12.99
  • Platinum ・ Package$17.99
  • GymBook Pro · Lifetime$22.99
None

Efort

No in-app purchases

Questions

Is GymBook ・ Strength Training free?
GymBook ・ Strength Training is free to download, with in-app purchases available.
Is Efort free?
Efort is free to download, with no in-app purchases.
Which has better reviews, GymBook ・ Strength Training or Efort?
GymBook ・ Strength Training and Efort are both rated 4.8 out of 5 on the App Store, from 2.4K and 15 ratings respectively.
Do GymBook ・ Strength Training or Efort have ads?
Neither GymBook ・ Strength Training nor Efort shows ads.
Which is updated more often, GymBook ・ Strength Training or Efort?
GymBook ・ Strength Training ships an update weekly, and Efort weekly. Most recently, GymBook ・ Strength Training was updated on September 22, 2026 and Efort on September 19, 2026.

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