# Singular Light vs Kaqun

The clearest difference is rating: Singular Light at 5.0 against Kaqun's 2.0. Singular Light also leads on iOS requirement (8.0 vs 13.0). Kaqun's advantage is update cadence (every 3 months vs every 8 months). On price, ratings volume, 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.

Singular Light holds the better App Store score, 5.0 against 2.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Singular Light ships an update every 8 months, Kaqun every 3 months. The most recent releases landed on October 3, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Singular Light | Kaqun |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/singular-light/id1634611433/reviews)** | [2.0 (1 ratings)](https://appshunter.io/ios/app/kaqun/id6443587806/reviews) |
| Number of ratings | 1 | 1 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 3 months** |
| Monetization | Free | Free |
| Size | 26 MB | 30 MB |
| Requires iOS | **8.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [CNOGA Medical Ltd.](https://appshunter.io/developer/1249224534) | [IDUNN WATER](https://appshunter.io/developer/1647405695) |

## What reviewers say

### Singular Light

[App page](https://appshunter.io/ios/app/singular-light/id1634611433)

Easily track vital health information by connecting to medical devices. Monitor trends, view historical data, and securely share your health metrics with healthcare professionals.

**Highlights:** Connect CNOGA medical devices, Track blood pressure, Monitor oxygen saturation, View heart rate, Track trends over time, Share health data with professionals

**Features:** macOS Compatibility

**In-app purchases:** none


### Kaqun

[App page](https://appshunter.io/ios/app/kaqun/id6443587806)

Control your Personalized Oxygen Delivery System from your smart device. Manage settings, create personalized experiences, and maintain your device remotely.

**Highlights:** Remote control for PODS™, Personalized user profiles, Three program options, Device maintenance management, Live updates, Adjust LED and temperature

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Singular Light free?

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

### Is Kaqun free?

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

### Which has better reviews, Singular Light or Kaqun?

Singular Light is rated higher. Singular Light averages 5.0 out of 5 from 1 ratings, while Kaqun averages 2.0 from 1 ratings.

### Do Singular Light or Kaqun have ads?

Neither Singular Light nor Kaqun shows ads.

### Which is updated more often, Singular Light or Kaqun?

Singular Light ships an update every 8 months, and Kaqun every 3 months. Most recently, Singular Light was updated on October 3, 2026 and Kaqun on September 20, 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.*