# OxyKnight vs Cognitive Assessments

The clearest difference is rating: Cognitive Assessments at 5.0 against OxyKnight's 3.5. OxyKnight's advantage is update cadence (fortnightly vs every 3 months) and ratings volume (8 vs 1). 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.

Cognitive Assessments holds the better App Store score, 5.0 against 3.5. That said, the two scores are not equally well evidenced: OxyKnight has 8 ratings behind it against 1, so its average is the more settled of the two.

OxyKnight ships an update fortnightly, Cognitive Assessments every 3 months. The most recent releases landed on July 5, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | OxyKnight | Cognitive Assessments |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (8 ratings)](https://appshunter.io/ios/app/oxyknight/id1631825159/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/cognitive-assessments/id6776948414/reviews)** |
| Number of ratings | **8** | 1 |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 months |
| Monetization | Free | Free |
| Size | 48 MB | 28 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [CMI Health Inc.](https://appshunter.io/developer/1054521049) | [Stephen Sethi](https://appshunter.io/developer/6776948416) |

## 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


### Cognitive Assessments

[App page](https://appshunter.io/ios/app/cognitive-assessments/id6776948414)

This clinical reference tool helps healthcare professionals administer, score, and record four validated cognitive screening instruments. It supports offline use and provides inline scoring and interpretation for assessments like SLUMS, RUDAS, AD8, and MoCA.

**Highlights:** Administer and score cognitive assessments, Includes SLUMS, RUDAS, AD8, and MoCA, Anonymous mode for patient privacy, Persistent session history with score breakdown, Inline scoring and interpretation, Offline functionality for key assessments, Timer support for timed subtasks

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

**In-app purchases:** none


## Frequently asked questions

### Is OxyKnight free?

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

### Is Cognitive Assessments free?

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

### Which has better reviews, OxyKnight or Cognitive Assessments?

Cognitive Assessments is rated higher. OxyKnight averages 3.5 out of 5 from 8 ratings, while Cognitive Assessments averages 5.0 from 1 ratings.

### Do OxyKnight or Cognitive Assessments have ads?

Neither OxyKnight nor Cognitive Assessments shows ads.

### Which is updated more often, OxyKnight or Cognitive Assessments?

OxyKnight ships an update fortnightly, and Cognitive Assessments every 3 months. Most recently, OxyKnight was updated on July 5, 2026 and Cognitive Assessments on September 22, 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.*