# OxiTone vs Carpathia

The clearest difference is review sentiment: Carpathia at 100% against OxiTone's 0%. Carpathia also leads on rating (4.7 vs 2.0) and update cadence (every 2 weeks vs every 4 months). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Carpathia holds the better App Store score, 4.7 against 2.0. Both are backed by a comparable volume of ratings — 1 and 3 respectively. Written reviews point the same way: 0% of OxiTone's written reviews are positive against 100% of Carpathia's.

OxiTone ships an update every 4 months, Carpathia every 2 weeks. The most recent releases landed on September 27, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | OxiTone | Carpathia |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (1 ratings)](https://appshunter.io/ios/app/oxitone/id1215743815/reviews) | **[4.7 (3 ratings)](https://appshunter.io/ios/app/carpathia/id1558379010/reviews)** |
| Number of ratings | 1 | **3** |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 weeks** |
| Monetization | Free | Free |
| Size | 38 MB | 2 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Oxitone](https://appshunter.io/developer/1215743814) | [Andrew Keller](https://appshunter.io/developer/1558379012) |

## What reviewers say

### OxiTone

[App page](https://appshunter.io/ios/app/oxitone/id1215743815)

This app allows users to monitor vital physiological data, including blood oxygen levels and pulse rate. It also tracks oxygen usage and includes a health assessment questionnaire. Data can be input manually or synced with compatible medical devices.

**Highlights:** Track blood oxygen level (SpO2), Monitor pulse rate, Record activity levels, Log supplementary oxygen use, Medical questionnaire for health status, Manual data entry, Automatic data sync with Oxitone devices

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

**In-app purchases:** none


### Carpathia

[App page](https://appshunter.io/ios/app/carpathia/id1558379010)

This application records barometric pressure data at your current location. It allows you to view up to a year of historical pressure readings. All data is saved locally on your device, ensuring privacy.

**Highlights:** Records barometric pressure, Up to 1 year of history, Local data storage, View historical readings

**In-app purchases:** none


## Frequently asked questions

### Is OxiTone free?

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

### Is Carpathia free?

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

### Which has better reviews, OxiTone or Carpathia?

Carpathia is rated higher. OxiTone averages 2.0 out of 5 from 1 ratings, while Carpathia averages 4.7 from 3 ratings.

### Do OxiTone or Carpathia have ads?

Neither OxiTone nor Carpathia shows ads.

### Which is updated more often, OxiTone or Carpathia?

OxiTone ships an update every 4 months, and Carpathia every 2 weeks. Most recently, OxiTone was updated on September 27, 2026 and Carpathia on October 11, 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.*