# OxyKnight vs Super Oxygen

OxyKnight and Super Oxygen are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

OxyKnight ships an update fortnightly, Super Oxygen monthly. The most recent releases landed on July 5, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | OxyKnight | Super Oxygen |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.5 (8 ratings)](https://appshunter.io/ios/app/oxyknight/id1631825159/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Monthly |
| Monetization | Free | — |
| Size | 48 MB | 20 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [CMI Health Inc.](https://appshunter.io/developer/1054521049) | [choicemmed](https://appshunter.io/developer/407926048) |

## What reviewers say

### OxyKnight

[App page](https://appshunter.io/ios/app/oxyknight/id1631825159)

This app works with compatible smart oximeter devices to monitor and record overnight pulse oximetry. It provides detailed sleep reports with SpO2 and PR trends, customizable alarms, and spot-checking capabilities for oxygen saturation and respiration rate.

**Highlights:** Overnight HRPO monitoring, Sleep reports with SpO2/PR trends, Customizable SpO2/PR alarms, Spot Check SpO2, PR, Respiration Rate, Bluetooth device connection, Shareable sleep data

**Features:** macOS Compatibility

**In-app purchases:** none


### Super Oxygen

[App page](https://appshunter.io/ios/app/super-oxygen/id1664713807)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is OxyKnight free?

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

### Is Super Oxygen free?

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

### Do OxyKnight or Super Oxygen have ads?

Neither OxyKnight nor Super Oxygen shows ads.

### Which is updated more often, OxyKnight or Super Oxygen?

OxyKnight ships an update fortnightly, and Super Oxygen monthly. Most recently, OxyKnight was updated on July 5, 2026 and Super Oxygen on September 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.*