# FITINDEX vs Caliber

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.

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

Caliber holds the better App Store score, 4.8 against 3.4. That said, the two scores are not equally well evidenced: Caliber has 6.2K 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.

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

## The numbers

| Metric | FITINDEX | Caliber |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.4 (841 ratings)](https://appshunter.io/ios/app/fitindex/id1327763738/reviews) | **[4.8 (6.2K ratings)](https://appshunter.io/ios/app/caliber-strength-training/id1482405410/reviews)** |
| Number of ratings | 841 | **6.2K** |
| Positive reviews | 53.8% of reviews | **78.1% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Fortnightly** |
| Monetization | **Free** | Free with in-app purchases |
| Best chart rank | — | **#166** |
| Size | 87 MB | 60 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [PANATRADE LLC](https://appshunter.io/developer/1327763737) | [Caliber Fitness, Inc](https://appshunter.io/developer/1482405409) |

## What reviewers say

### FITINDEX

[App page](https://appshunter.io/ios/app/fitindex/id1327763738)

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:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

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

**What reviewers complain about**

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

**Reported bugs**

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

**Requested features**

- 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

[App page](https://appshunter.io/ios/app/caliber-strength-training/id1482405410)

**Currently charting:** #166 Top Grossing · Health & Fitness (US App Store)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Caliber Supporter (Monthly) | $3.00 | per month |
| Caliber Plus (Monthly) | $6.00 | per month |
| Caliber Plus (Monthly) | $9.00 | per month |
| Caliber Plus (Monthly) | $12.00 | per month |
| Caliber Plus (Yearly) | $36.00 | per year |
| Caliber Plus (Yearly) | $54.00 | per year |
| Caliber Plus (Yearly) | $72.00 | per year |
| Caliber Plus (Yearly) | $72.00 | per year |

**What reviewers like**

- 👍 Easy to use
- 🚀 Comprehensive workout tracking
- 💡 Customizable workouts
- 🔍 Detailed exercise instructions and videos
- 📊 Strength score and progress tracking

**What reviewers complain about**

- 🐛 Occasional app crashes and bugs
- 🔍 Limited offline functionality
- 💰 Subscription model can be confusing
- 🔍 Inconsistent video quality and exercise explanations
- 🕰️ Frustrating user interface at times

**Reported bugs**

- 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**

- 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


## Frequently asked 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 6.2K 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*