# Calibre Biometrics vs Fortify Training Intelligence

The clearest difference is in-app purchases: Fortify Training Intelligence at none against Calibre Biometrics's 1. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Calibre Biometrics sells 1 in-app purchase, starting at $7.99 per month. Fortify Training Intelligence asks for nothing beyond the download.

## The numbers

| Metric | Calibre Biometrics | Fortify Training Intelligence |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 weeks | — |
| Monetization | Free | — |
| Size | 116 MB | 17 MB |
| Requires iOS | 15.4 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [BreathTaking Tech LLC](https://appshunter.io/developer/1609706657) | [Exsurgo Technologies, LLC](https://appshunter.io/developer/1396586023) |

## What reviewers say

### Calibre Biometrics

[App page](https://appshunter.io/ios/app/calibre-biometrics/id6743721886)

This app pairs with a wearable device to track and analyze key metabolic and performance metrics like VO2 Max and resting metabolic rate. It provides detailed insights into your body's energy expenditure and fat burning zones. Designed for informational and educational use, it complements professional health guidance.

**Highlights:** View biometric data, Record metabolic information, Analyze VO2 Max, Monitor Resting Metabolic Rate, Track FatMax and Calories, Companion to wearable tracker

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Calibre Premium | $7.99 | per month |


### Fortify Training Intelligence

[App page](https://appshunter.io/ios/app/fortify-training-intelligence/id6760793345)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Calibre Biometrics free?

Calibre Biometrics is free to download, with in-app purchases available.

### Is Fortify Training Intelligence free?

Fortify Training Intelligence is free to download, with no in-app purchases.

### Do Calibre Biometrics or Fortify Training Intelligence have ads?

Neither Calibre Biometrics nor Fortify Training Intelligence shows ads.

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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.*