# Sequent OXYGO vs Link2Care PRO

The clearest difference is update cadence: Sequent OXYGO at every 3 weeks against Link2Care PRO's every 5 months. Link2Care PRO's advantage is iOS requirement (13.0 vs 15.0). 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.

Sequent OXYGO ships an update every 3 weeks, Link2Care PRO every 5 months. The most recent releases landed on October 9, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Sequent OXYGO | Link2Care PRO |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (64 ratings)](https://appshunter.io/ios/app/sequent-oxygo/id1592236088/reviews)** | — |
| Number of ratings | **64** | — |
| Positive reviews | 65.2% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 5 months |
| Monetization | Free | — |
| Size | 123 MB | 50 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sequent](https://appshunter.io/developer/1450614003) | [Dayton Industrial Company Limited](https://appshunter.io/developer/1331270436) |

## What reviewers say

### Sequent OXYGO

[App page](https://appshunter.io/ios/app/sequent-oxygo/id1592236088)

This app complements a unique self-charging smartwatch, allowing users to monitor fitness metrics like steps, distance, and calories. It also tracks heart rate, SpO2, and sleep quality, with the ability to export data to Apple Health.

**Highlights:** Track steps, distance, and calories, Monitor heart rate, SpO2, and sleep, Record sport sessions with e-GPS mapping, Set daily targets and workout goals, Analyze performance data, Integrate with Apple Health

**In-app purchases:** none


### Link2Care PRO

[App page](https://appshunter.io/ios/app/link2care-pro/id6739792118)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Sequent OXYGO free?

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

### Is Link2Care PRO free?

Link2Care PRO is free to download, with no in-app purchases.

### Do Sequent OXYGO or Link2Care PRO have ads?

Neither Sequent OXYGO nor Link2Care PRO shows ads.

### Which is updated more often, Sequent OXYGO or Link2Care PRO?

Sequent OXYGO ships an update every 3 weeks, and Link2Care PRO every 5 months. Most recently, Sequent OXYGO was updated on October 9, 2026 and Link2Care PRO on October 7, 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.*