# PRO SKI Sensor vs Calibre Biometrics

The clearest difference is price: Calibre Biometrics at Free against PRO SKI Sensor's $0.99. PRO SKI Sensor's advantage is in-app purchases (none vs 1). On update cadence, ads, device support and iOS requirement there is nothing between them.

Calibre Biometrics is free to download; PRO SKI Sensor costs $0.99 up front. Calibre Biometrics sells 1 in-app purchase, starting at $7.99 per month. PRO SKI Sensor asks for nothing beyond the download.

PRO SKI Sensor ships an update monthly, Calibre Biometrics every 4 weeks. The most recent releases landed on October 16, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | PRO SKI Sensor | Calibre Biometrics |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 4 weeks** |
| Monetization | — | Free |
| Size | 102 MB | 116 MB |
| Requires iOS | 15.6 | **15.4** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [PRO SENSOR DEVELOPMENT SL.](https://appshunter.io/developer/1489712292) | [BreathTaking Tech LLC](https://appshunter.io/developer/1609706657) |

## What reviewers say

### PRO SKI Sensor

[App page](https://appshunter.io/ios/app/pro-ski-sensor/id1489712293)

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

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is PRO SKI Sensor free?

PRO SKI Sensor costs $0.99, with no in-app purchases.

### Is Calibre Biometrics free?

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

### Do PRO SKI Sensor or Calibre Biometrics have ads?

Neither PRO SKI Sensor nor Calibre Biometrics shows ads.

### Which is updated more often, PRO SKI Sensor or Calibre Biometrics?

PRO SKI Sensor ships an update monthly, and Calibre Biometrics every 4 weeks. Most recently, PRO SKI Sensor was updated on October 16, 2026 and Calibre Biometrics on October 18, 2026.

---

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