# iOX vs Cure Trio (US)

The clearest difference is update cadence: iOX at every 2 months against Cure Trio (US)'s every 11 months. Cure Trio (US)'s advantage is iOS requirement (9.0 vs 12.0). On price, ads, in-app purchases and device support there is nothing between them.

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

iOX ships an update every 2 months, Cure Trio (US) every 11 months. The most recent releases landed on October 2, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | iOX | Cure Trio (US) |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.8 (15 ratings)](https://appshunter.io/ios/app/iox/id957603710/reviews)** | — |
| Number of ratings | **15** | — |
| Positive reviews | 35.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 11 months |
| Monetization | Free | — |
| Size | 6 MB | 16 MB |
| Requires iOS | 12.0 | **9.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Safe Heart USA, Inc.](https://appshunter.io/developer/957603709) | [Netop Industrial Company Limited](https://appshunter.io/developer/1491717165) |

## 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


### Cure Trio (US)

[App page](https://appshunter.io/ios/app/cure-trio-us/id1613899819)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is iOX free?

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

### Is Cure Trio (US) free?

Cure Trio (US) is free to download, with no in-app purchases.

### Do iOX or Cure Trio (US) have ads?

Neither iOX nor Cure Trio (US) shows ads.

### Which is updated more often, iOX or Cure Trio (US)?

iOX ships an update every 2 months, and Cure Trio (US) every 11 months. Most recently, iOX was updated on October 2, 2026 and Cure Trio (US) on October 7, 2026.

---

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