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/
I don’t normally write reviews but after using this app I just had too. This app is essential whether you are a beginner or regular gym goer. I am fed up of all these greedy software/app companies charging high subscription fees for little value. Caliber offers you a free app to log your workouts, body measurements, create your own plans and then if you want to take your training to the next level and get support along the way you can subscribe for customised plans or 1 to 1 training as well as personalised nutrition plans and the subscription fees for that service are priced very fairly. It is so refreshing to find a company offering true value when we are paying sky high fees for everything at the moment. Well done Caliber this should be the standard that other companies should follow. 👏🏻👏🏻
Best workout tracking app out there
AN Burton
I’ve used a few different apps to track workouts and this one is easily the best - especially considering it’s free. Great layout, plenty of exercises to choose from, and detailed instructions and videos for all of them. The weekly content is also really useful.A couple of things that stop me giving the app five stars. First, I really don’t understand how the strength score is calculated. I’ve tracked workouts where I haven’t dropped weight or reps but my strength score has gone down, then other weeks it’s shot up when it feels like I’m only lifting slightly heavier. More transparency on how it’s calculated would be welcome. I also struggle to get the app to work in offline mode if there’s little or no internet connection, and it sometimes gets stuck when loading.Other than that, no complaints, and I’ll continue to use it to track my workouts.
Life Changing - Get this app and get yourself a coach
Reinette Pepper
I have never done weight training before and was looking for someone who could help me get training in the right way, keep me motivated and reduce the risk of me getting injured as I started to put my 48 year old body under pressure. The results have been transformational and life changing. I am 8 weeks in working with my personal coach Jacob and he has genuinely changed my life. He picks me up when I need it, he gives me feedback on my technique videos to make sure I am getting the most out of every exercise. The app is brilliantly layed out and my programme is evolving as I get stronger. Take the leap and get yourself a coach and you will not be disappointed.
Lose the strength scores
83637446733
App itself is 5 stars for the free version. Random strength scores bring it down to a 3. The scores are so poorly calculated it’s insane, they appear to solely take into account the weight of a rep and not the number of reps. Obviously everyone has different aims and these change, so it’s demoralising opening the app and seeing a big message saying strength score has been decreased because you’ve decided to do more reps at a slightly lower weight. Obviously this doesn’t actually equate to a decrease in strength. It’s a really hard concept to calculate one single number for, in all honesty I’d just stop trying. The scores also don’t take into account the effort put in, some sessions will naturally be to failure and others will be recovery. Get rid of the scores that don’t work and you easily have one of the top fitness apps on the App Store
Developer Response
Great to hear that you love many aspects of the app, outside of Strength Score! On our side, we'll be working to make some of the explanations around score changes clearer. In cases where you might have increased reps while correspondingly decreasing weight, this can actually result in a decrease in your estimated 1rm (temporarily), while you then work to build up reps with the heavier weight. Since I agree that these blips aren't terribly representative, even if accurate purely from a estimated 1 rep max standpoint, we're planning to add some downside volatility smoothing, so that your score wouldn't immediately drop in such cases.That being said, if you don't find the scoring helpful, you actually have full control over whether you see this or not your Home screen. To adjust this, just go to Menu > General Settings, and you can disable both Strength Score and Strength Balance from there.Hope this helps, and that you make great progress using the app!
This release includes major infrastructure updates, improving reliability across devices, along with a few feature enhancements and bug fixes.
Version 5.16.0
The developer, Caliber Fitness, Inc, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
Health & Fitness
Contact Info
User Content
Identifiers
Usage Data
Diagnostics
Privacy practices may vary based, for example, on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
Provider
Caliber Fitness, Inc.
Size
70.6 MB
Category
Health & Fitness
Compatibility
Requires iOS 15.1 or later.
iPhone Requires iOS 15.1 or later.
iPod touch Requires iOS 15.1 or later.
Mac Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
