# SpiroFit vs SKISENS

The clearest difference is iOS requirement: SKISENS at 15.1 against SpiroFit's 17.6. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

SpiroFit ships an update every 3 weeks, SKISENS fortnightly. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | SpiroFit | SKISENS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/spirofit/id6475291331/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | Free | — |
| Size | 8 MB | 68 MB |
| Requires iOS | 17.6 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [SENDSOR GmbH](https://appshunter.io/developer/1723823291) | [SkisensAB](https://appshunter.io/developer/1321910154) |

## What reviewers say

### SpiroFit

[App page](https://appshunter.io/ios/app/spirofit/id6475291331)

Track key respiratory and heart metrics live during workouts like running or cycling. Analyze professional data for optimal training intensity. Suitable for coaches, professional athletes, and fitness enthusiasts.

**Highlights:** Live respiratory rate tracking, Live heart rate monitoring, Tidal volume measurement, O2 consumption tracking, CO2 output tracking, Professional data analysis, Real-time training feedback

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

**In-app purchases:** none


### SKISENS

[App page](https://appshunter.io/ios/app/skisens/id6475583302)

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

**In-app purchases:** none


## Frequently asked questions

### Is SpiroFit free?

SpiroFit is free to download, with no in-app purchases.

### Is SKISENS free?

SKISENS is free to download, with no in-app purchases.

### Do SpiroFit or SKISENS have ads?

Neither SpiroFit nor SKISENS shows ads.

### Which is updated more often, SpiroFit or SKISENS?

SpiroFit ships an update every 3 weeks, and SKISENS fortnightly. Most recently, SpiroFit was updated on October 27, 2026 and SKISENS on October 25, 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.*