Caliber Strength Training

In-app purchases
4.7
3.46K reviews
100K+
Downloads
Content rating
PEGI 3
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About this app

Caliber is a science-based strength training app that combines resistance training, cardio, nutrition, and habit formation to help you build muscle, lose fat, and improve your overall fitness—for good.

TRAIN YOUR WAY

✔ Free Version. Create and track unlimited workouts, access 600+ 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 and 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 Groups. Train with friends or family in private groups. Your workouts and personal bests are shared with the group to keep your motivated.

✅ Health Connect Support. Sync your cardio, nutrition, and body stats from your wearable or connected device.

UNLOCK MORE WITH CALIBER PLUS (OPTIONAL UPGRADE)

🚀 Coach-Designed Training Plans. Choose from 60+ 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.

⭐ #1 Rated Coaching Program. Caliber Premium Coaching is the top-rated fitness program on TrustPilot, with hundreds of 5-star reviews.

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/
Updated on
Sep 10, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Personal info, Health and fitness and 5 others
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

4.7
3.42K reviews
Alec Gonzalez
June 10, 2025
Phenomenal workout app when it comes to UI, variety in workouts, and ease of use. Bonus points for it being free (aside from the option to purchase training) The only major gripe I have about it is the overall performance. This app lags on me constantly, pretty much every time I need to enter my reps for a set it will hang for up to 30 seconds before I can actually enter anything. I've tried clearing the cache and reinstalling, but to no avail. *An update had fixed the issue but now it's back.*
20 people found this review helpful
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Caliber Fitness
June 14, 2025
Great to hear that you love the app, although I'm sorry you're running into performance issues! We haven't been seeing issues there more broadly, so I'd like to figure out what might be happening here. When you have a moment, please reach out to us at support@caliberstrong.com - we can then look into your account and figure out what's going on.
Damian Nadales
August 15, 2024
Premium user here. The explanation of the exercises is good, although I'd appreciate a voice over guidance. Workout logging works well. Uploading a video is flimsy at best: they don't seem to do video compression at the client side and save money on server instances, which results in very slow video uploads (something quite crucial when you're being coached online). There is no progress indication when uploading a video, and I had to repeat the upload process several times.
2 people found this review helpful
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Caliber Fitness
October 10, 2024
Thanks for the feedback here! In terms of the video upload feature, we're actually going to be working on that soon with some enhancements, hopefully allowing for background video uploading which should make the process a lot more seamless.
Frank
August 5, 2025
This app used to be ELITE. Paid options for the people who could afford it and a more than decent free version for the ones who can't. Now? you have to pay just to change a workout, create a new workout, and probably change your password. Just a heads up for those considering the app. Substitutions on workouts are not free. Creating a custom exercise is NOT free. These features used to be free.
7 people found this review helpful
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Caliber Fitness
August 2, 2025
Unfortunately this isn't accurate. To clarify here, most of the features in the app are completely free to use, without a subscription, including the ability to create and track an unlimited number of workouts. We do have a paid subscription, which gives you access to additional features, but this is entirely optional.

What’s new

Bug fixes and performance improvements.