Comparison

Caliber vs Built on the Bricks

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

Head to head
About

Caliber

This app offers science-based strength training with features for muscle building, weight loss, and fitness improvement. It provides personalized workouts, exercise tutorials, and community features. Optional upgrades offer advanced plans, nutrition targets, and 1-on-1 coaching.

Highlights
  • Personalized workout creation and tracking
  • Extensive exercise library with video tutorials
  • Workout Circles for training with friends
  • Apple Health integration
  • AI-powered training insights
  • Coach-designed training plans
  • Strength Score and balance metrics
Features
Read full description

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/

About

Built on the Bricks

Features
Read full description

Log your Built on the Bricks workouts from anywhere with the Built on the Bricks workout logging app! View your logged workouts, see upcoming scheduled workouts, and book appointments inside the app. Track your progress and get the most out of your Built on the Bricks workouts! If you enjoy the Built on the Bricks app, we’d really appreciate if you took a second to leave a nice review because it helps us improve and also helps get the word out. Thank you!!

Screenshots

Caliber4 screens
Built on the Bricks4 screens

Verdict

The call

The clearest difference is in-app purchases: Built on the Bricks at none against Caliber's 10. Caliber's advantage is update cadence (fortnightly vs every 11 months) and chart position (#156 vs unranked). On price, ads, device support and iOS requirement 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. Caliber sells 8 in-app purchases, starting at $3.00 per month. Built on the Bricks asks for nothing beyond the download.

UpkeepUpdate frequency

Caliber ships an update fortnightly, Built on the Bricks every 11 months. The most recent releases landed on November 10, 2026 and November 7, 2026 respectively.

Scorecard3 real differences · 8 level
Caliber versus Built on the Bricks: the parameters behind the verdict, then further details
ParameterCaliberBuilt on the Bricks
PriceFreeFree
Rating4.8 (6.2K ratings) — better—
Positive reviews78.2% of reviews—
Number of ratings6.2K — better—
Update frequencyFortnightly — betterEvery 11 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
Best chart rank#156 — better—
DevicesiPhone, iPodiPhone, iPod
Requires iOS15.115.0 — better
Further details — not scored
Size60 MB45 MB
Age rating12+12+
DeveloperCaliber Fitness, IncNicole Merrill

Bugs and requests

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

Built on the Bricks

Not enough reviews yet to summarise bugs or requests.

In-app purchases

8 purchases

Caliber

Subscriptions8
  • Caliber Supporter (Monthly)$3.001 Month
  • Caliber Plus (Monthly)$6.001 Month
  • Caliber Plus (Monthly)$9.001 Month
Show 5 more
  • Caliber Plus (Monthly)2 variants$12.001 Month
  • Caliber Plus (Yearly)7 Days trial$36.001 Year
  • Caliber Plus (Yearly)7 Days trial$54.001 Year
  • Caliber Plus (Yearly)7 Days trial2 variants$72.001 Year
  • Caliber Plus (Yearly)1 Month trial$72.001 Year
None

Built on the Bricks

No in-app purchases

Questions

Is Caliber free?
Caliber is free to download, with in-app purchases available.
Is Built on the Bricks free?
Built on the Bricks is free to download, with no in-app purchases.
Do Caliber or Built on the Bricks have ads?
Neither Caliber nor Built on the Bricks shows ads.
Which is updated more often, Caliber or Built on the Bricks?
Caliber ships an update fortnightly, and Built on the Bricks every 11 months. Most recently, Caliber was updated on November 10, 2026 and Built on the Bricks on November 7, 2026.

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