# iOX vs OSTARAI HR

The clearest difference is rating: OSTARAI HR at 5.0 against iOX's 2.8. iOX's advantage is ratings volume (15 vs 1) and iOS requirement (12.0 vs 15.6). 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.

OSTARAI HR holds the better App Store score, 5.0 against 2.8. That said, the two scores are not equally well evidenced: iOX has 15 ratings behind it against 1, so its average is the more settled of the two.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 2, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | iOX | OSTARAI HR |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.8 (15 ratings)](https://appshunter.io/ios/app/iox/id957603710/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/ostarai-hr/id6448777797/reviews)** |
| Number of ratings | **15** | 1 |
| Positive reviews | 35.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free | Free |
| Size | 6 MB | 1 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Safe Heart USA, Inc.](https://appshunter.io/developer/957603709) | [華星醫學科技有限公司 ALPHAHEART LIMITED](https://appshunter.io/developer/1682199526) |

## What reviewers say

### iOX

[App page](https://appshunter.io/ios/app/iox/id957603710)

This app helps manage your personal health by noninvasively tracking blood oxygenation, heart rate, and perfusion index. It features a plethysmograph display and programmable alarms for health alerts. Data can be easily exported for review.

**Highlights:** Noninvasive SpO2 tracking, Heart rate monitoring, Perfusion index tracking, Plethysmograph display, Programmable alarms, One-click CSV data export

**Features:** macOS Compatibility

**In-app purchases:** none


### OSTARAI HR

[App page](https://appshunter.io/ios/app/ostarai-hr/id6448777797)

This app helps manage personal health data by recording daily measurements from a portable device. Users can upload data to the cloud for in-depth analysis and insights. It is intended for personal health management and not as a substitute for professional medical advice.

**Highlights:** Personal health management, Record daily measurements, Connects with portable devices, Cloud data upload, Detailed measurement analysis

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

**In-app purchases:** none


## Frequently asked questions

### Is iOX free?

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

### Is OSTARAI HR free?

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

### Which has better reviews, iOX or OSTARAI HR?

OSTARAI HR is rated higher. iOX averages 2.8 out of 5 from 15 ratings, while OSTARAI HR averages 5.0 from 1 ratings.

### Do iOX or OSTARAI HR have ads?

Neither iOX nor OSTARAI HR shows ads.

### Which is updated more often, iOX or OSTARAI HR?

iOX ships an update every 2 months, and OSTARAI HR every 2 months. Most recently, iOX was updated on October 2, 2026 and OSTARAI HR on October 16, 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.*