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67
BU Score
Solid

Caliber: Strength Training

4.8 ✍️ Editor
✍️ BU Analytics Review

Caliber: Strength Training is an iOS app from Caliber Fitness, Inc in the Health & Fitness category, currently rated 4.8★ across 5,558 ratings. Initial signal reads as mixed reviews — supporters praise core features while critics cite stability/value gaps.

Our BU Score puts it at 67Solid (established niche player). For a Health & Fitness app, that means established niche player.

Track changes month-over-month in the Performance section below — live snapshot history and revenue forecast included.

📊 Performance Tracking LIVE

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Reviews
Forecast Revenue / mo
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💰 Forecast Revenue / mo

MODEL
Revenue forecast computed from BU's 234 trigger model on each snapshot. Calibrated against ground-truth from 58 verified-revenue apps.
🔬Forecast Breakdown — Why This Estimate?Top 12 of 12 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
Excellent rating (4.8★)METRIC
+$2,200
bugsREVIEW
−$1,800
5 starREVIEW
+$1,800
excellent appREVIEW
+$1,500
Low install base (5,558 ratings)METRIC
+$1,500
highly recommendREVIEW
+$1,400
slowREVIEW
−$1,200
annoying adsREVIEW
−$1,100
priceyREVIEW
−$800
Established app (5y old)METRIC
+$800
Ad-supported / freemiumMETRIC
+$600
Single-language (English only)METRIC
−$400
METRIC = structural app data · REVIEW = mined from user reviews · ✓ VERIFIED = Stripe-verified anchor (TrustMRR)

📈 Reviews Growth

LIVE
Cumulative review count from first BU snapshot. Each point = a tracked update.
💚Sentiment Over Time↑ green = positive · ↓ red = negative
Apr 25
May 25
Jun 25
Jul 25
Aug 25
Sep 25
Oct 25
Nov 25
Dec 25
Jan 26
Feb 26
Mar 26

⭐ Rating Trend

LIVE
Average rating evolution. Updates with each new review batch.

🗓️ Snapshot Timeline

HISTORY
Each bar shows a tracked update and the metric delta from the previous snapshot.
App Specs
🔐 Own this app? Claim & verify MRR →
💾 61 MB🔞 12+📱 iOS 15.1+🔖 v5.13.0🔄 updated 0d ago🌐 EN📂 Health & Fitness💰 Free🚀 Launched 2020 (5y old)

📝 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 + 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 you motivated.

• Apple Health Integration. 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.

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/

🆕 What's New · v5.13.0

With this release, we've completely revamped the Progress section of the app!
* Add and customize charts for all activity types, including Exercises, Cardio, Nutrition, Body Stats, and Habits
* View your charts across different dimensions, such as 1 Rep Max, Max Weight, Max Volume for Exercises, and Distance, Time, Calories, and Pace for Cardio
* Smoothly jump between different time periods on your charts
* Swipe/scroll back to see all of your historical data for any chart view

Profile & Insights

Everything we know — and don't — about this app and its company.

Identification

App name
Caliber: Strength Training
Developer
Caliber Fitness, Inc
Bundle ID
com.caliberfitness.app
App Store URL
Open in App Store
Category
Health & Fitness
Content rating
12+
Languages
EN

Company

Website
Not found
Tagline
Transform your fitness with science-based training.
Description
Caliber is a science-based fitness and nutrition coaching program that helps you build muscle and lose weight with measurable results every step of the way.
Founded
Not found
HQ / Address
Not found
Employees
Not found
Logo
OG image

Revenue

Verified revenue / mo
Not found
AI revenue estimate / mo
Not found
AI annual estimate
Not found
ML model estimate / mo
$849/mo
Top-grossing rank
Outside top 100 in US Health & Fitness
All-time revenue
Not found
Pricing
Not found

Founder

Name
Not found
X / Twitter
https://twitter.com/caliberstrong
LinkedIn
Not found
GitHub
Not found
X followers
Not found
Public statements
Not found

Funding

Total raised
Not found
Last round
Not found
Investors
Not found
Crunchbase
Not found
AngelList
Not found

Press & Links

Articles found
Not found
Listed on
Not found
Blog
https://caliberstrong.com/blog/
Press / News
Not found

Contacts & Socials

Socials
facebook · instagram · twitter
Email
Not found
Phone
Not found
Contact page
https://caliberstrong.com/contact-us/
About page
https://caliberstrong.com/about-us/
📈Ratings growth5,558 ratings+48% lifetimeShow 3-year history estimate ▾May 2023Nov 2025May 2026
Tracked (51 weeks) Pre-tracking estimate (33 weeks) · model-based, ±5% noise · anchored to release date and current value
🌍Geographic ReachNot ranked
This app is currently outside the top 100 grossing in all 9 countries we monitor (US, UK, DE, FR, JP, CA, AU, BR, IN). Niche or new apps often launch this way — popularity rankings appear once daily revenue clears the regional threshold.
Profile is built from iTunes Lookup + developer site scrape + ML revenue model. Empty fields show "Not found" — additional sources (Crunchbase, X, IndieHackers, Acquire.com) coming.

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