Comparison

FITINDEX vs Caliber

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

Head to head
About

FITINDEX

This app tracks various body composition metrics like BMI, body fat, and muscle mass. It provides cloud-based data analysis and reports, allowing families to monitor their health together. Data can be synchronized with HealthKit for a comprehensive health overview.

Highlights
  • Body composition tracking (BMI, body fat, muscle mass)
  • Cloud-based data analysis and reports
  • Family sharing for multiple users
  • HealthKit synchronization
  • Intelligent health charts
Features
Read full description

Healthy For Love! FITINDEX is the top app to be healthier. The app can track your body compositions (BMI, body fat percentage, body water, bone mass, the rate of subcutaneous fat, visceral fat levels, basal metabolism body age, muscle mass and so on), and cloud -based intelligent data analysis and tracking, providing the perfect healthy body composition analysis charts and reports. At the same time the full support of the family used together, allowing you to understand the health status of the family anywhere. In iPhone based on iOS8, when you use our smart body scales measuring body composition, weight, percentage of body fat, fat weight, height, body mass index (BMI), height and resting calorie consumption data will be synchronized to HealthKit in. * For your privacy and HealthKit data IMPORTANT: 1. If the user has landed, after the first application into the cloud combo, you will be asked whether you want to synchronize your body measurement data and HealthKit, you want to cloud combo written authorization to HealthKit information from HealthKit permission to read the information. Then, you can view or change these permissions in the source of HealthKit. 2. If the new registered users in the registration screen, you will be asked whether you want to synchronize your body measurement data and HealthKit, cloud combo you want to write information and authorization to read information from HealthKit permissions to HealthKit in. Then, you can view or change these permissions in the source of HealthKit.

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/

Screenshots

FITINDEX4 screens
Caliber4 screens

Verdict

The call

The clearest difference is rating: Caliber at 4.8 against FITINDEX's 3.4. Caliber also leads on update cadence (fortnightly vs every 3 months) and review sentiment (78% vs 54%). FITINDEX's advantage is in-app purchases (none vs 10) and device support (4 vs 2). On price 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Caliber sells 8 in-app purchases, starting at $3.00 per month. FITINDEX asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Caliber holds the better App Store score, 4.8 against 3.4. That said, the two scores are not equally well evidenced: Caliber has 6.1K ratings behind it against 841, so its average is the more settled of the two. Written reviews point the same way: 54% of FITINDEX's written reviews are positive against 78% of Caliber's.

UpkeepUpdate frequency

FITINDEX ships an update every 3 months, Caliber fortnightly. The most recent releases landed on November 2, 2026 and November 7, 2026 respectively.

Scorecard9 real differences · 2 level
FITINDEX versus Caliber: the parameters behind the verdict, then further details
ParameterFITINDEXCaliber
PriceFreeFree
Rating3.4 (841 ratings)4.8 (6.1K ratings) — better
Positive reviews53.8% of reviews78.1% of reviews — better
Number of ratings8416.1K — better
Update frequencyEvery 3 monthsFortnightly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
Best chart rank—#196 — better
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPod
Requires iOS12.0 — better15.1
Further details — not scored
Size87 MB60 MB
Age rating4+12+
DeveloperPANATRADE LLCCaliber Fitness, Inc

Customer experience

FITINDEX

All ratings800 ratings
Positive55.9%
Neutral13.3%
Negative30.9%
Written reviews195 reviews
Positive53.8%
Neutral18.5%
Negative27.7%

Caliber

All ratings6,093 ratings
Positive96.7%
Neutral1.1%
Negative2.2%
Written reviews530 reviews
Positive78.1%
Neutral6.2%
Negative15.7%

User reviews

FITINDEX

From 841 App Store ratings

What we love

  • 🚀 Easy setup and sync
  • 📊 Comprehensive metrics and tracking
  • 💪 Motivating for weight loss
  • 🤖 Accurate measurements
  • 🔗 Good integration with Apple Health

Room to improve

  • 🔢 Inaccurate biometric calculations
  • 🕰️ Misleading historical data visualization
  • 🔍 Small, hard-to-read font
  • 🔌 Bluetooth connectivity issues
  • 🤯 Drastic measurement changes without explanation

Caliber

From 6.1K App Store ratings

What 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

FITINDEX

Reported bugs

4 issues
  • App freezes when accessing trends
  • Syncing issues with Apple Health
  • Inconsistent weight recording
  • Inability to input historical data accurately

Requested features

5 requests
  • Add dark mode option
  • Allow customization of data display and metrics
  • Improve historical data visualization
  • Implement pregnancy tracking mode
  • Add ability to manually adjust measurements

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

None

FITINDEX

No 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

Questions

Is FITINDEX free?
FITINDEX is free to download, with no in-app purchases.
Is Caliber free?
Caliber is free to download, with in-app purchases available.
Which has better reviews, FITINDEX or Caliber?
Caliber is rated higher. FITINDEX averages 3.4 out of 5 from 841 ratings, while Caliber averages 4.8 from 6.1K ratings.
Do FITINDEX or Caliber have ads?
Neither FITINDEX nor Caliber shows ads.
Which is updated more often, FITINDEX or Caliber?
FITINDEX ships an update every 3 months, and Caliber fortnightly. Most recently, FITINDEX was updated on November 2, 2026 and Caliber on November 7, 2026.

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