Strong Workout Tracker Gym Log vs Caliber
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Intuitive workout logging
- Comprehensive exercise library
- Apple Watch integration
- Advanced progress statistics
- Customizable routines
- Cloud data backup
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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
Caliber
This app offers science-based strength training, including workout planning, tracking, and exercise tutorials. It supports individual training, group workouts, and offers optional upgrades for personalized plans, advanced features, and one-on-one coaching.
- Unlimited workout creation and tracking
- 600+ exercise tutorials with videos
- Workout groups for training with friends
- Coach-designed training plans
- Personalized progress tracking
- 1-on-1 elite coaching options
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Caliber is a science-based strength training app that combines resistance training, cardio, nutrition, and habit formation to help you build muscle, lose weight, and improve your overall fitness - for good. TRAIN YOUR WAY • Free Version. Create and track unlimited workouts, access 800+ exercises, and train solo or with friends. • Caliber Plus. Maximize your results with coach-designed training plans, personalized progress tracking, nutrition targets and more. • Premium Coaching. Get 1-on-1 guidance from an elite-level personal trainer with a fully customized training and nutrition plan, in-app chat + video messaging with your coach and weekly progress reviews to keep you on track. CALIBER FEATURES (FREE VERSION) • Personalized Workouts. Create and track an unlimited number of workouts tailored to your goals. No gym required. • Detailed Exercise Tutorials. Learn proper form with step-by-step videos and pro tips from Caliber coaches. • Workout Circles. Train with friends and family in private workout chats. When you hit a personal best, it's shared with the group. • Apple Health Integration. Sync your cardio, nutrition, steps and body stats from your wearable or connected device. • Connect to AI. Sync your training data with ChatGPT and Claude for personalized insights and training analysis. UNLOCK MORE WITH CALIBER PLUS (OPTIONAL UPGRADE) • Coach-Designed Training Plans. Choose from 120+ structured plans tailored to your goals, experience level and schedule. • Strength Score. Measure how strong you are relative to your potential for your age and gender. • Strength Balance. Improve your posture and mobility by optimizing your training across key muscle groups. • Caliber Lessons. Gain expert insights on training and nutrition to accelerate your progress. • Advanced Training Features. Get personalized nutrition targets, create custom exercises and supersets, swap exercises, upload progress photos, and more. PREMIUM COACHING (OPTIONAL UPGRADE) • Work with an Elite-Level Coach. Train 1-on-1 with a dedicated coach to achieve your full potential in the gym and beyond. Caliber coaches are highly vetted, accredited personal trainers among the top 1% in their field. • Fully Personalized Plan. Your coach will design a training and nutrition program just for you based on your goals, experience and lifestyle. • Daily Motivation & Expert Guidance. Stay on track with in-app messaging, video form reviews, and individualized guidance. • Weekly Progress Reviews. Get in-depth analysis from your coach to optimize your training. • Fast Response Times. Your coach is available 24/7, typically replying within a few hours. • Guaranteed Results. On average, Caliber members improve their body composition by 20% or more within 12 weeks. If you don't see results, we'll refund the cost of the program. SEE WHAT OUR MEMBERS SAY • For detailed reviews from real Caliber members, visit our TrustPilot page at https://www.trustpilot.com/review/caliberstrong.com Terms of Use: https://caliberstrong.com/terms-of-service/ Privacy Policy: https://caliberstrong.com/privacy-policy/
Screenshots
Verdict
The clearest difference is ratings volume: Strong Workout Tracker Gym Log at 109K against Caliber's 6.1K. Strong Workout Tracker Gym Log also leads on chart position (#67 vs unranked). Caliber's advantage is review sentiment (78% vs 65%). On price, rating, update cadence and ads 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. Strong Workout Tracker Gym Log sells 8 in-app purchases, starting at $3.99 per month and Caliber sells 18 in-app purchases, starting at $3.00 per month. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.9 for Strong Workout Tracker Gym Log against 4.8 for Caliber. That said, the two scores are not equally well evidenced: Strong Workout Tracker Gym Log has 109K ratings behind it against 6.1K, so its average is the more settled of the two. Written reviews are what separate them: 65% of Strong Workout Tracker Gym Log's written reviews are positive against 78% of Caliber's.
Strong Workout Tracker Gym Log ships an update every 2 weeks, Caliber fortnightly. Both last shipped on October 31, 2026.
| Parameter | Strong Workout Tracker Gym Log | Caliber |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (109K ratings) — better | 4.8 (6.1K ratings) |
| Positive reviews | 65.3% of reviews | 78.1% of reviews — better |
| Number of ratings | 109K — better | 6.1K |
| Update frequency | Every 2 weeks | Fortnightly — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | Free with in-app purchases |
| Best chart rank | #67 — better | — |
| Devices | iPhone, iPod, Apple Watch — better | iPhone, iPod |
| Requires iOS | 15.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 129 MB | 59 MB |
| Age rating | 4+ | 12+ |
| Developer | Strong Fitness PTE Limited | Caliber Fitness, Inc |
Customer experience
Strong Workout Tracker Gym Log
Caliber
User reviews
Strong Workout Tracker Gym Log
From 109K App Store ratingsWhat we love
- 🚀 Excellent workout tracking
- 👍 Clean, intuitive interface
- 📊 Comprehensive data and progress tracking
- ⌚ Seamless Apple Watch integration
- 🔍 Extensive exercise library
Room to improve
- 🔋 High battery consumption
- 🔒 Concerns about subscription model and pricing
- 🐛 Apple Watch app issues and syncing problems
- 🔧 Difficulty editing or deleting exercises/routines
Caliber
From 6.1K App Store ratingsWhat we love
- 👍 Easy to use
- 🚀 Comprehensive workout tracking
- 💡 Customizable workouts
- 🔍 Detailed exercise instructions and videos
- 📊 Strength score and progress tracking
Room to improve
- 🐛 Occasional app crashes and bugs
- 🔍 Limited offline functionality
- 💰 Subscription model can be confusing
- 🔍 Inconsistent video quality and exercise explanations
- 🕰️ Frustrating user interface at times
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)
Caliber
Reported bugs
3 issues- Workout data loss when switching between online and offline mode
- Strength score not updating correctly in some cases
- Inability to log weight for certain exercises
Requested features
5 requests- Add ability to create and save custom exercises
- Integrate with more fitness tracking devices and apps
- Improve offline mode to allow full workout tracking
- Provide more flexibility in workout scheduling and planning
- Enhance strength score calculations and explanations
In-app purchases
Strong Workout Tracker Gym Log
- 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 moreShow fewer
- Strong PRO (1 Year)$23.991 Year
- Strong PRO (1 Year)$29.991 Year
- Strong PRO (1 Year)2 Months trial$29.991 Year
- Strong PRO Forever$79.99
- Strong PRO Forever$99.99
Caliber
- Caliber Supporter (Monthly)$3.001 Month
- Caliber Supporter (Monthly)$5.001 Month
- Caliber Plus (Monthly)2 variants$6.001 Month
Show 15 moreShow fewer
- Caliber Plus (Monthly)7 Days trial$6.001 Month
- Caliber Supporter (Monthly)$7.001 Month
- Caliber Supporter (Monthly)$9.001 Month
- Caliber Plus (Monthly)2 variants$9.001 Month
- Caliber Plus (Monthly)2 variants$12.001 Month
- Caliber Pro (Monthly)$19.001 Month
- Caliber Pro (Monthly)7 Days trial$19.001 Month
- Caliber Plus (Yearly)7 Days trial$36.001 Year
- Caliber Pro (3 Months)$49.003 Months
- Caliber Pro (3 Months)7 Days trial$49.003 Months
- Caliber Plus (Yearly)7 Days trial2 variants$54.001 Year
- Caliber Plus (Yearly)7 Days trial2 variants$72.001 Year
- Caliber Plus (Yearly)1 Month trial$72.001 Year
- Caliber Pro (Yearly)$169.001 Year
- Caliber Pro (Yearly)7 Days trial$169.001 Year
Questions
Is Strong Workout Tracker Gym Log free?
Is Caliber free?
Which has better reviews, Strong Workout Tracker Gym Log or Caliber?
Do Strong Workout Tracker Gym Log or Caliber have ads?
Which is updated more often, Strong Workout Tracker Gym Log or Caliber?
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